php/ext/standard/basic_functions.c

/* 
   +----------------------------------------------------------------------+
   | PHP version 4.0                                                      |
   +----------------------------------------------------------------------+
   | Copyright (c) 1997, 1998, 1999 The PHP Group                         |
   +----------------------------------------------------------------------+
   | This source file is subject to version 2.0 of the PHP license,       |
   | that is bundled with this package in the file LICENSE, and is        |
   | available at through the world-wide-web at                           |
   | http://www.php.net/license/2_0.txt.                                  |
   | If you did not receive a copy of the PHP license and are unable to   |
   | obtain it through the world-wide-web, please send a note to          |
   | license@php.net so we can mail you a copy immediately.               |
   +----------------------------------------------------------------------+
   | Authors: Andi Gutmans <andi@zend.com>                                |
   |          Zeev Suraski <zeev@zend.com>                                |
   +----------------------------------------------------------------------+
 */


#include "php.h"
#include "php_ini.h"
#include "internal_functions_registry.h"
#include "php3_standard.h"
#include "zend_operators.h"
#include <stdarg.h>
#include <stdlib.h>
#include <math.h>
#include <time.h>
#include <stdio.h>
#if HAVE_UNISTD_H
#include <unistd.h>
#endif
#if HAVE_STRING_H
#include <string.h>
#else
#include <strings.h>
#endif
#include "safe_mode.h"
#if WIN32|WINNT
#include "win32/unistd.h"
#endif
#include "zend_globals.h"

#include "php_globals.h"
#include "SAPI.h"

#if APACHE 
/* 
  	ap_compat.h does a 
  	#define md5 ap_md5
  	which "kills" out md5 function.
*/
#ifdef md5
#undef md5
#endif
#endif

static unsigned char second_and_third_args_force_ref[] = { 3, BYREF_NONE, BYREF_FORCE, BYREF_FORCE };
/* uncomment this if/when we actually need it - tired of seeing the warning
static unsigned char third_and_fourth_args_force_ref[] = { 4, BYREF_NONE, BYREF_NONE, BYREF_FORCE, BYREF_FORCE };
*/
static pval *user_compare_func_name;
static HashTable *user_shutdown_function_names;

typedef struct _php_shutdown_function_entry {
	zval **arguments;
	int arg_count;
} php_shutdown_function_entry;

/* some prototypes for local functions */
int user_shutdown_function_dtor(php_shutdown_function_entry *shutdown_function_entry);
void php3_call_shutdown_functions(void);

function_entry basic_functions[] = {
	PHP_FE(intval,									NULL)
	PHP_FE(doubleval,								NULL)
	PHP_FE(strval,									NULL)
	PHP_FE(bin2hex, 								NULL)
	PHP_FE(toggle_short_open_tag,					NULL)
	PHP_FE(sleep,									NULL)
	PHP_FE(usleep,									NULL)
			
	PHP_FE(ksort,									first_arg_force_ref)
	PHP_FE(krsort,									first_arg_force_ref)
	PHP_FE(asort,									first_arg_force_ref)
	PHP_FE(arsort,									first_arg_force_ref)
	PHP_FE(sort,									first_arg_force_ref)
	PHP_FE(rsort,									first_arg_force_ref)
	PHP_FE(usort,									first_arg_force_ref)
	PHP_FE(uasort,									first_arg_force_ref)
	PHP_FE(uksort,									first_arg_force_ref)
	PHP_FE(shuffle,									first_arg_force_ref)
	PHP_FE(array_walk,								first_arg_force_ref)
	PHP_FALIAS(sizeof,			count,				first_arg_allow_ref)
	PHP_FE(count,									first_arg_allow_ref)
	PHP_FE(end, 									first_arg_force_ref)
	PHP_FE(prev, 									first_arg_force_ref)
	PHP_FE(next, 									first_arg_force_ref)
	PHP_FE(reset, 									first_arg_force_ref)
	PHP_FE(current, 								first_arg_force_ref)
	PHP_FE(key, 									first_arg_force_ref)
	PHP_FALIAS(pos,				current,			first_arg_force_ref)
	
	PHP_FE(time,									NULL)
	PHP_FE(mktime,									NULL)
	PHP_FE(gmmktime,								NULL)
#if HAVE_STRFTIME
	PHP_FE(strftime,								NULL)
#endif
	PHP_FE(strtotime,								NULL)
	PHP_FE(date,									NULL)
	PHP_FE(gmdate,									NULL)
	PHP_FE(getdate,									NULL)
	PHP_FE(checkdate,								NULL)

	PHP_FE(flush,									NULL)
	
	PHP_FE(gettype,									NULL)
	PHP_FE(settype,									first_arg_force_ref)
	
	PHP_FE(min,										NULL)
	PHP_FE(max,										NULL)

	PHP_FE(getimagesize,							NULL)
	
	PHP_FE(htmlspecialchars,						NULL)
	PHP_FE(htmlentities,							NULL)
	
	PHP_FE(md5,										NULL)

	PHP_FE(iptcparse,								NULL)
	PHP_FE(iptcembed,								NULL)
		
	PHP_FE(phpinfo,									NULL)
	PHP_FE(phpversion,								NULL)
	PHP_FE(phpcredits,								NULL)
	
	PHP_FE(strspn,									NULL)
	PHP_FE(strcspn,									NULL)
	PHP_FE(strtok,									NULL)
	PHP_FE(strtoupper,								NULL)
	PHP_FE(strtolower,								NULL)
	PHP_FE(strpos,									NULL)
	PHP_FE(strrpos,									NULL)
	PHP_FE(strrev,									NULL)
	PHP_FE(hebrev,									NULL)
	PHP_FE(hebrevc,									NULL)
	PHP_FE(nl2br,									NULL)
	PHP_FE(basename,								NULL)
	PHP_FE(dirname,									NULL)
	PHP_FE(stripslashes,							NULL)
	PHP_FE(stripcslashes,							NULL)
	PHP_FE(strstr,									NULL)
	PHP_FE(stristr,									NULL)
	PHP_FE(strrchr,									NULL)
	PHP_FE(substr,									NULL)
	PHP_FE(quotemeta,								NULL)
	PHP_FE(ucfirst,									NULL)
	PHP_FE(ucwords,									NULL)
	PHP_FE(strtr,									NULL)
	PHP_FE(addslashes,								NULL)
	PHP_FE(addcslashes,								NULL)
	PHP_FE(chop,									NULL)
	PHP_FE(str_replace,								NULL)
	PHP_FE(chunk_split,								NULL)
	PHP_FE(trim,									NULL)
	PHP_FE(ltrim,									NULL)
	PHP_FE(strip_tags,								NULL)
	PHP_FE(similar_text,							NULL)
	PHP_FE(explode,									NULL)
	PHP_FE(implode,									NULL)
	PHP_FE(setlocale,								NULL)
	PHP_FE(soundex,									NULL)
	PHP_FE(chr,										NULL)
	PHP_FE(ord,										NULL)
	PHP_FE(parse_str,								NULL)
	PHP_FALIAS(rtrim,			chop,				NULL)
	PHP_FALIAS(strchr,			strstr,				NULL)
	PHP_NAMED_FE(sprintf,		php3_user_sprintf,	NULL)
	PHP_NAMED_FE(printf,		php3_user_printf,	NULL)
	
	PHP_FE(parse_url,								NULL)
	PHP_FE(urlencode,								NULL)
	PHP_FE(urldecode,								NULL)
	PHP_FE(rawurlencode,							NULL)
	PHP_FE(rawurldecode,							NULL)

	PHP_FE(readlink,								NULL)
	PHP_FE(linkinfo,								NULL)
	PHP_FE(symlink,									NULL)
	PHP_FE(link,									NULL)
	PHP_FE(unlink,									NULL)
	
	PHP_FE(exec, 									second_and_third_args_force_ref)
	PHP_FE(system, 									second_arg_force_ref)
	PHP_FE(escapeshellcmd, 							NULL)
	PHP_FE(passthru, 								second_arg_force_ref)
	PHP_FE(shell_exec, 								NULL)

	PHP_FE(rand,									NULL)
	PHP_FE(srand,									NULL)
	PHP_FE(getrandmax,								NULL)
	PHP_FE(mt_rand,									NULL)
	PHP_FE(mt_srand,								NULL)
	PHP_FE(mt_getrandmax,							NULL)
	
	PHP_FE(gethostbyaddr,							NULL)
	PHP_FE(gethostbyname,							NULL)
	PHP_FE(gethostbynamel,							NULL)
#if !(WIN32|WINNT)||HAVE_BINDLIB
	PHP_FE(checkdnsrr,								NULL)
	PHP_FE(getmxrr,									second_and_third_args_force_ref)
#endif

	PHP_FE(getmyuid,								NULL)
	PHP_FE(getmypid,								NULL)
	PHP_FE(getmyinode,								NULL)
	PHP_FE(getlastmod,								NULL)
	/*getmyiid is here for forward compatibility with 3.1
	  See pageinfo.c in 3.1 for more information*/
	/* {"getmyiid",	php3_getmypid,				NULL}, */

	PHP_FE(base64_decode,							NULL)
	PHP_FE(base64_encode,							NULL)

	PHP_FE(abs,										NULL)
	PHP_FE(ceil,									NULL)
	PHP_FE(floor,									NULL)
	PHP_FE(round,									NULL)
	PHP_FE(sin,										NULL)
	PHP_FE(cos,										NULL)
	PHP_FE(tan,										NULL)
	PHP_FE(asin,									NULL)
	PHP_FE(acos,									NULL)
	PHP_FE(atan,									NULL)
	PHP_FE(atan2,									NULL)
	PHP_FE(pi,										NULL)
	PHP_FE(pow,										NULL)
	PHP_FE(exp,										NULL)
	PHP_FE(log,										NULL)
	PHP_FE(log10,									NULL)
	PHP_FE(sqrt,									NULL)
	PHP_FE(deg2rad,									NULL)
	PHP_FE(rad2deg,									NULL)
	PHP_FE(bindec,									NULL)
	PHP_FE(hexdec,									NULL)
	PHP_FE(octdec,									NULL)
	PHP_FE(decbin,									NULL)
	PHP_FE(decoct,									NULL)
	PHP_FE(dechex,									NULL)
	PHP_FE(base_convert,							NULL)
	PHP_FE(number_format,							NULL)

	PHP_FE(getenv,									NULL)
#ifdef HAVE_PUTENV
	PHP_FE(putenv,									NULL)
#endif

	PHP_FE(microtime,								NULL)
	PHP_FE(gettimeofday,							NULL)
	PHP_FE(getrusage,								NULL)
	
	PHP_FE(uniqid,									NULL)
		
	PHP_FE(quoted_printable_decode,					NULL)
	
	PHP_FE(convert_cyr_string,						NULL)
	PHP_FE(get_current_user,						NULL)
	PHP_FE(set_time_limit,							NULL)
	
	PHP_FE(get_cfg_var,								NULL)
	PHP_FALIAS(magic_quotes_runtime, set_magic_quotes_runtime,	NULL)
	PHP_FE(set_magic_quotes_runtime,				NULL)
	PHP_FE(get_magic_quotes_gpc,					NULL)
	PHP_FE(get_magic_quotes_runtime,				NULL)
	
	PHP_FE(is_long,									first_arg_allow_ref)
	PHP_FALIAS(is_int,			is_long,			first_arg_allow_ref)
	PHP_FALIAS(is_integer,		is_long,			first_arg_allow_ref)
	PHP_FALIAS(is_float,		is_double,			first_arg_allow_ref)
	PHP_FE(is_double,								first_arg_allow_ref)
	PHP_FALIAS(is_real,			is_double,			first_arg_allow_ref)
	PHP_FE(is_string,								first_arg_allow_ref)
	PHP_FE(is_array,								first_arg_allow_ref)
	PHP_FE(is_object,								first_arg_allow_ref)

	PHP_FE(error_log,								NULL)
	PHP_FE(call_user_func,							NULL)
	PHP_FE(call_user_method,						NULL)

	PHP_FE(var_dump,								NULL)
	PHP_FE(serialize,								first_arg_allow_ref)
	PHP_FE(unserialize,								first_arg_allow_ref)
	
	PHP_FE(register_shutdown_function,	NULL)

	PHP_FE(highlight_file,				NULL)	
	PHP_NAMED_FE(show_source, php3_highlight_file, NULL)
	PHP_FE(highlight_string,			NULL)
	
	PHP_FE(ob_start,					NULL)
	PHP_FE(ob_end_flush,				NULL)
	PHP_FE(ob_end_clean,				NULL)
	PHP_FE(ob_get_contents,				NULL)

	PHP_FE(ini_get,						NULL)
	PHP_FE(ini_alter,					NULL)
	PHP_FE(ini_restore,					NULL)

	PHP_FE(print_r,					NULL)
	
	PHP_FE(setcookie,								NULL)
	PHP_NAMED_FE(header,		PHP_FN(Header),							NULL)
	PHP_FE(headers_sent,							NULL)
	
	PHP_FE(function_exists,				NULL)
	PHP_FE(in_array,					NULL)
	PHP_FE(extract,						NULL)
	PHP_FE(compact,						NULL)
	PHP_FE(range,						NULL)
	PHP_FE(array_push,					first_arg_force_ref)
	PHP_FE(array_pop,					first_arg_force_ref)
	PHP_FE(array_shift,					first_arg_force_ref)
	PHP_FE(array_unshift,				first_arg_force_ref)
	PHP_FE(array_splice,				first_arg_force_ref)
	PHP_FE(array_slice,					NULL)
	PHP_FE(array_merge,					NULL)
	PHP_FE(array_keys,					NULL)
	PHP_FE(array_values,				NULL)
	PHP_FE(array_count_values,		   	NULL)
	PHP_FE(array_reverse,				NULL)

	PHP_FE(connection_aborted,			NULL)
	PHP_FE(connection_timeout,			NULL)
	PHP_FE(connection_status,			NULL)
	PHP_FE(ignore_user_abort,			NULL)

	{NULL, NULL, NULL}
};


PHP_INI_BEGIN()
	PHP_INI_ENTRY1("highlight.string",	"#foobar",	PHP_INI_ALL,		NULL,		NULL)
	PHP_INI_ENTRY1("test2",				"testing",	PHP_INI_SYSTEM,		NULL,		NULL)
PHP_INI_END()


php3_module_entry basic_functions_module = {
	"Basic Functions",			/* extension name */
	basic_functions,			/* function list */
	PHP_MINIT(basic),			/* process startup */
	PHP_MSHUTDOWN(basic),		/* process shutdown */
	PHP_RINIT(basic),			/* request startup */
	PHP_RSHUTDOWN(basic),		/* request shutdown */
	NULL,						/* extension info */
	STANDARD_MODULE_PROPERTIES
};

#ifdef HAVE_PUTENV
static HashTable putenv_ht;

static int _php3_putenv_destructor(putenv_entry *pe)
{
	if (pe->previous_value) {
		putenv(pe->previous_value);
	} else {
# if HAVE_UNSETENV
		unsetenv(pe->key);
# else
		char **env;
		
		for (env = environ; env != NULL && *env != NULL; env++) {
			if (!strncmp(*env,pe->key,pe->key_len) && (*env)[pe->key_len]=='=') {	/* found it */
				*env = "";
				break;
			}
		}
# endif
	}
	efree(pe->putenv_string);
	efree(pe->key);
	return 1;
}
#endif

#ifndef M_PI
#define M_PI 3.14159265358979323846
#endif

#define EXTR_OVERWRITE		0
#define EXTR_SKIP			1
#define EXTR_PREFIX_SAME	2
#define	EXTR_PREFIX_ALL		3

void test_class_startup();

PHP_MINIT_FUNCTION(basic)
{
	ELS_FETCH();

	REGISTER_DOUBLE_CONSTANT("M_PI", M_PI, CONST_CS | CONST_PERSISTENT);

	REGISTER_LONG_CONSTANT("EXTR_OVERWRITE", EXTR_OVERWRITE, CONST_CS | CONST_PERSISTENT);
	REGISTER_LONG_CONSTANT("EXTR_SKIP", EXTR_SKIP, CONST_CS | CONST_PERSISTENT);
	REGISTER_LONG_CONSTANT("EXTR_PREFIX_SAME", EXTR_PREFIX_SAME, CONST_CS | CONST_PERSISTENT);
	REGISTER_LONG_CONSTANT("EXTR_PREFIX_ALL", EXTR_PREFIX_ALL, CONST_CS | CONST_PERSISTENT);
	
	test_class_startup();
	REGISTER_INI_ENTRIES();

	register_phpinfo_constants(INIT_FUNC_ARGS_PASSTHRU);
	return SUCCESS;
}


PHP_MSHUTDOWN_FUNCTION(basic)
{
	UNREGISTER_INI_ENTRIES();
	return SUCCESS;	
}


PHP_RINIT_FUNCTION(basic)
{
	strtok_string = NULL;
#ifdef HAVE_PUTENV
	if (zend_hash_init(&putenv_ht, 1, NULL, (int (*)(void *)) _php3_putenv_destructor, 0) == FAILURE) {
		return FAILURE;
	}
#endif
	user_compare_func_name=NULL;
	user_shutdown_function_names=NULL;
	return SUCCESS;
}


PHP_RSHUTDOWN_FUNCTION(basic)
{
	STR_FREE(strtok_string);
#ifdef HAVE_PUTENV
	zend_hash_destroy(&putenv_ht);
#endif

	return SUCCESS;
}

/********************
 * System Functions *
 ********************/

PHP_FUNCTION(getenv)
{
#if FHTTPD
	int i;
#endif
	pval *str;
	char *ptr;
	SLS_FETCH();

	if (ARG_COUNT(ht) != 1 || getParameters(ht, 1, &str) == FAILURE) {
		WRONG_PARAM_COUNT;
	}
	convert_to_string(str);

#if FHTTPD
	ptr=NULL;
	if (str->type == IS_STRING && req){
		for(i=0;i<req->nlines;i++){
			if (req->lines[i].paramc>1){
				if (req->lines[i].params[0]){
					if (!strcmp(req->lines[i].params[0],
							   str->value.str.val)){
						ptr=req->lines[i].params[1];
						i=req->nlines;
					}
				}
			}
		}
	}
	if (!ptr) ptr = getenv(str->value.str.val);
	if (ptr
#else

	if (str->type == IS_STRING &&
#if APACHE
		((ptr = (char *)table_get(((request_rec *) SG(server_context))->subprocess_env, str->value.str.val)) || (ptr = getenv(str->value.str.val)))
#endif
#if CGI_BINARY
		(ptr = getenv(str->value.str.val))
#endif

#if USE_SAPI
		(ptr = sapi_rqst->getenv(sapi_rqst->scid,str->value.str.val))
#endif
#endif
		) {
		RETURN_STRING(ptr,1);
	}
	RETURN_FALSE;
}


#ifdef HAVE_PUTENV
PHP_FUNCTION(putenv)
{

	pval *str;

	if (ARG_COUNT(ht) != 1 || getParameters(ht, 1, &str) == FAILURE) {
		WRONG_PARAM_COUNT;
	}
	convert_to_string(str);

	if (str->value.str.val && *(str->value.str.val)) {
		int ret;
		char *p,**env;
		putenv_entry pe;
		
		pe.putenv_string = estrndup(str->value.str.val,str->value.str.len);
		pe.key = str->value.str.val;
		if ((p=strchr(pe.key,'='))) { /* nullify the '=' if there is one */
			*p='\0';
		}
		pe.key_len = strlen(pe.key);
		pe.key = estrndup(pe.key,pe.key_len);
		
		zend_hash_del(&putenv_ht,pe.key,pe.key_len+1);
		
		/* find previous value */
		pe.previous_value = NULL;
		for (env = environ; env != NULL && *env != NULL; env++) {
			if (!strncmp(*env,pe.key,pe.key_len) && (*env)[pe.key_len]=='=') {	/* found it */
				pe.previous_value = *env;
				break;
			}
		}

		if ((ret=putenv(pe.putenv_string))==0) { /* success */
			zend_hash_add(&putenv_ht,pe.key,pe.key_len+1,(void **) &pe,sizeof(putenv_entry),NULL);
			RETURN_TRUE;
		} else {
			efree(pe.putenv_string);
			efree(pe.key);
			RETURN_FALSE;
		}
	}
}
#endif



PHP_FUNCTION(toggle_short_open_tag)
{
	/* has to be implemented within Zend */
#if 0
	pval *value;
	int ret;
	
	ret = php3_ini.short_open_tag;

	if (ARG_COUNT(ht)!=1 || getParameters(ht,1,&value) == FAILURE) {
		WRONG_PARAM_COUNT;
	}
	convert_to_long(value);
	php3_ini.short_open_tag = value->value.lval;
	RETURN_LONG(ret);
#endif
}

/*******************
 * Basic Functions *
 *******************/

PHP_FUNCTION(intval)
{
	pval *num, *arg_base;
	int base;
	
	switch(ARG_COUNT(ht)) {
	case 1:
		if (getParameters(ht, 1, &num) == FAILURE) {
			WRONG_PARAM_COUNT;
		}
		base = 10;
		break;
	case 2:
		if (getParameters(ht, 2, &num, &arg_base) == FAILURE) {
			WRONG_PARAM_COUNT;
		}
		convert_to_long(arg_base);
		base = arg_base->value.lval;
		break;
	default:
		WRONG_PARAM_COUNT;
	}

	convert_to_long_base(num, base);
	*return_value = *num;
}


PHP_FUNCTION(doubleval)
{
	pval *num;

	if (ARG_COUNT(ht) != 1 || getParameters(ht, 1, &num) == FAILURE) {
		WRONG_PARAM_COUNT;
	}
	convert_to_double(num);
	*return_value = *num;
}


PHP_FUNCTION(strval)
{
	pval *num;

	if (ARG_COUNT(ht) != 1 || getParameters(ht, 1, &num) == FAILURE) {
		WRONG_PARAM_COUNT;
	}
	convert_to_string(num);
	*return_value = *num;
	pval_copy_constructor(return_value);
}

static int array_key_compare(const void *a, const void *b)
{
	Bucket *first;
	Bucket *second;
	int min, r;

	first = *((Bucket **) a);
	second = *((Bucket **) b);

	if (first->nKeyLength == 0 && second->nKeyLength == 0) {
		return (first->h - second->h);
	} else if (first->nKeyLength == 0) {
		return -1;
	} else if (second->nKeyLength == 0) {
		return 1;
	}
	min = MIN(first->nKeyLength, second->nKeyLength);
	if ((r = memcmp(first->arKey, second->arKey, min)) == 0) {
		return (first->nKeyLength - second->nKeyLength);
	} else {
		return r;
	}
}

static int array_reverse_key_compare(const void *a, const void *b)
{
	return array_key_compare(a,b)*-1;
}

PHP_FUNCTION(krsort)
{
	pval *array;
	HashTable *target_hash;

	if (ARG_COUNT(ht) != 1 || getParameters(ht, 1, &array) == FAILURE) {
		WRONG_PARAM_COUNT;
	}
	target_hash = HASH_OF(array);
	if (!target_hash) {
		php_error(E_WARNING, "Wrong datatype in krsort() call");
		return;
	}
	if (!ParameterPassedByReference(ht,1)) {
		php_error(E_WARNING, "Array not passed by reference in call to krsort()");
		return;
	}
	if (zend_hash_sort(target_hash, array_reverse_key_compare,0) == FAILURE) {
		return;
	}
	RETURN_TRUE;
}

PHP_FUNCTION(ksort)
{
	pval *array;
	HashTable *target_hash;

	if (ARG_COUNT(ht) != 1 || getParameters(ht, 1, &array) == FAILURE) {
		WRONG_PARAM_COUNT;
	}
	target_hash = HASH_OF(array);
	if (!target_hash) {
		php_error(E_WARNING, "Wrong datatype in ksort() call");
		return;
	}
	if (!ParameterPassedByReference(ht,1)) {
		php_error(E_WARNING, "Array not passed by reference in call to ksort()");
		return;
	}
	if (zend_hash_sort(target_hash, array_key_compare,0) == FAILURE) {
		return;
	}
	RETURN_TRUE;
}


PHP_FUNCTION(count)
{
	pval **array;
	HashTable *target_hash;

	if (ARG_COUNT(ht) != 1 || getParametersEx(1, &array) == FAILURE) {
		WRONG_PARAM_COUNT;
	}

	target_hash = HASH_OF(*array);
	if (!target_hash) {
		if ((*array)->type == IS_STRING && (*array)->value.str.val==undefined_variable_string) {
			RETURN_LONG(0);
		} else {
			RETURN_LONG(1);
		}
	}

	RETURN_LONG(zend_hash_num_elements(target_hash));
}


/* Numbers are always smaller than strings int this function as it
 * anyway doesn't make much sense to compare two different data types.
 * This keeps it consistant and simple.
 */
static int array_data_compare(const void *a, const void *b)
{
	Bucket *f;
	Bucket *s;
	pval *first;
	pval *second;
	double dfirst, dsecond;

	f = *((Bucket **) a);
	s = *((Bucket **) b);

	first = *((pval **) f->pData);
	second = *((pval **) s->pData);

	if ((first->type == IS_LONG || first->type == IS_DOUBLE) &&
		(second->type == IS_LONG || second->type == IS_DOUBLE)) {
		if (first->type == IS_LONG) {
			dfirst = (double) first->value.lval;
		} else {
			dfirst = first->value.dval;
		}
		if (second->type == IS_LONG) {
			dsecond = (double) second->value.lval;
		} else {
			dsecond = second->value.dval;
		}
		if (dfirst < dsecond) {
			return -1;
		} else if (dfirst == dsecond) {
			return 0;
		} else {
			return 1;
		}
	}
	if ((first->type == IS_LONG || first->type == IS_DOUBLE) &&
		second->type == IS_STRING) {
		return -1;
	} else if ((first->type == IS_STRING) &&
			   (second->type == IS_LONG || second->type == IS_DOUBLE)) {
		return 1;
	}
	if (first->type == IS_STRING && second->type == IS_STRING) {
		return strcmp(first->value.str.val, second->value.str.val);
	}
	return 0;					/* Anything else is equal as it can't be compared */
}

static int array_reverse_data_compare(const void *a, const void *b)
{
	return array_data_compare(a,b)*-1;
}

PHP_FUNCTION(asort)
{
	pval *array;
	HashTable *target_hash;

	if (ARG_COUNT(ht) != 1 || getParameters(ht, 1, &array) == FAILURE) {
		WRONG_PARAM_COUNT;
	}
	target_hash = HASH_OF(array);
	if (!target_hash) {
		php_error(E_WARNING, "Wrong datatype in asort() call");
		return;
	}
    if (!ParameterPassedByReference(ht,1)) {
        php_error(E_WARNING, "Array not passed by reference in call to asort()");
		return;
    }
	if (zend_hash_sort(target_hash, array_data_compare,0) == FAILURE) {
		return;
	}
	RETURN_TRUE;
}

PHP_FUNCTION(arsort)
{
	pval *array;
	HashTable *target_hash;

	if (ARG_COUNT(ht) != 1 || getParameters(ht, 1, &array) == FAILURE) {
		WRONG_PARAM_COUNT;
	}
	target_hash = HASH_OF(array);
	if (!target_hash) {
		php_error(E_WARNING, "Wrong datatype in arsort() call");
		return;
	}
    if (!ParameterPassedByReference(ht,1)) {
        php_error(E_WARNING, "Array not passed by reference in call to arsort()");
		return;
    }
	if (zend_hash_sort(target_hash, array_reverse_data_compare,0) == FAILURE) {
		return;
	}
	RETURN_TRUE;
}

PHP_FUNCTION(sort)
{
	pval *array;
	HashTable *target_hash;

	if (ARG_COUNT(ht) != 1 || getParameters(ht, 1, &array) == FAILURE) {
		WRONG_PARAM_COUNT;
	}
	target_hash = HASH_OF(array);
	if (!target_hash) {
		php_error(E_WARNING, "Wrong datatype in sort() call");
		return;
	}
    if (!ParameterPassedByReference(ht,1)) {
        php_error(E_WARNING, "Array not passed by reference in call to sort()");
		return;
    }
	if (zend_hash_sort(target_hash, array_data_compare,1) == FAILURE) {
		return;
	}
	RETURN_TRUE;
}

PHP_FUNCTION(rsort)
{
	pval *array;
	HashTable *target_hash;

	if (ARG_COUNT(ht) != 1 || getParameters(ht, 1, &array) == FAILURE) {
		WRONG_PARAM_COUNT;
	}
	target_hash = HASH_OF(array);
	if (!target_hash) {
		php_error(E_WARNING, "Wrong datatype in rsort() call");
		return;
	}
    if (!ParameterPassedByReference(ht,1)) {
        php_error(E_WARNING, "Array not passed by reference in call to rsort()");
		return;
    }
	if (zend_hash_sort(target_hash, array_reverse_data_compare,1) == FAILURE) {
		return;
	}
	RETURN_TRUE;
}


static int array_user_compare(const void *a, const void *b)
{
	Bucket *f;
	Bucket *s;
	pval **args[2];
	pval retval;
	CLS_FETCH();

	f = *((Bucket **) a);
	s = *((Bucket **) b);

	args[0] = (pval **) f->pData;
	args[1] = (pval **) s->pData;

	if (call_user_function_ex(CG(function_table), NULL, user_compare_func_name, &retval, 2, args, 0)==SUCCESS) {
		convert_to_long(&retval);
		return retval.value.lval;
	} else {
		return 0;
	}
}


PHP_FUNCTION(usort)
{
	pval *array;
	pval *old_compare_func;
	HashTable *target_hash;

	old_compare_func = user_compare_func_name;
	if (ARG_COUNT(ht) != 2 || getParameters(ht, 2, &array, &user_compare_func_name) == FAILURE) {
		user_compare_func_name = old_compare_func;
		WRONG_PARAM_COUNT;
	}
	target_hash = HASH_OF(array);
	if (!target_hash) {
		php_error(E_WARNING, "Wrong datatype in usort() call");
		user_compare_func_name = old_compare_func;
		return;
	}
	convert_to_string(user_compare_func_name);
	if (zend_hash_sort(target_hash, array_user_compare, 1) == FAILURE) {
		user_compare_func_name = old_compare_func;
		return;
	}
	user_compare_func_name = old_compare_func;
	RETURN_TRUE;
}

PHP_FUNCTION(uasort)
{
	pval *array;
	pval *old_compare_func;
	HashTable *target_hash;

	old_compare_func = user_compare_func_name;
	if (ARG_COUNT(ht) != 2 || getParameters(ht, 2, &array, &user_compare_func_name) == FAILURE) {
		user_compare_func_name = old_compare_func;
		WRONG_PARAM_COUNT;
	}
	target_hash = HASH_OF(array);
	if (!target_hash) {
		php_error(E_WARNING, "Wrong datatype in uasort() call");
		user_compare_func_name = old_compare_func;
		return;
	}
	convert_to_string(user_compare_func_name);
	if (zend_hash_sort(target_hash, array_user_compare, 0) == FAILURE) {
		user_compare_func_name = old_compare_func;
		return;
	}
	user_compare_func_name = old_compare_func;
	RETURN_TRUE;
}


static int array_user_key_compare(const void *a, const void *b)
{
	Bucket *f;
	Bucket *s;
	pval key1, key2;
	pval *args[2];
	pval retval;
	int status;
	CLS_FETCH();

	args[0] = &key1;
	args[1] = &key2;
	INIT_PZVAL(&key1);
	INIT_PZVAL(&key2);
	
	f = *((Bucket **) a);
	s = *((Bucket **) b);

	if (f->nKeyLength) {
		key1.value.str.val = estrndup(f->arKey, f->nKeyLength);
		key1.value.str.len = f->nKeyLength;
		key1.type = IS_STRING;
	} else {
		key1.value.lval = f->h;
		key1.type = IS_LONG;
	}
	if (s->nKeyLength) {
		key2.value.str.val = estrndup(s->arKey, s->nKeyLength);
		key2.value.str.len = s->nKeyLength;
		key2.type = IS_STRING;
	} else {
		key2.value.lval = s->h;
		key2.type = IS_LONG;
	}

	status = call_user_function(CG(function_table), NULL, user_compare_func_name, &retval, 2, args);
	
	pval_destructor(&key1);
	pval_destructor(&key2);
	
	if (status==SUCCESS) {
		convert_to_long(&retval);
		return retval.value.lval;
	} else {
		return 0;
	}
}


PHP_FUNCTION(uksort)
{
	pval *array;
	pval *old_compare_func;
	HashTable *target_hash;

	old_compare_func = user_compare_func_name;
	if (ARG_COUNT(ht) != 2 || getParameters(ht, 2, &array, &user_compare_func_name) == FAILURE) {
		user_compare_func_name = old_compare_func;
		WRONG_PARAM_COUNT;
	}
	target_hash = HASH_OF(array);
	if (!target_hash) {
		php_error(E_WARNING, "Wrong datatype in uksort() call");
		user_compare_func_name = old_compare_func;
		return;
	}
	convert_to_string(user_compare_func_name);
	if (zend_hash_sort(target_hash, array_user_key_compare, 0) == FAILURE) {
		user_compare_func_name = old_compare_func;
		return;
	}
	user_compare_func_name = old_compare_func;
	RETURN_TRUE;
}


PHP_FUNCTION(end)
{
	pval *array, **entry;
	HashTable *target_hash;

	if (ARG_COUNT(ht) != 1 || getParameters(ht, 1, &array) == FAILURE) {
		WRONG_PARAM_COUNT;
	}
	target_hash = HASH_OF(array);
	if (!target_hash) {
		php_error(E_WARNING, "Variable passed to end() is not an array or object");
		return;
	}
    if (!ParameterPassedByReference(ht,1)) {
        php_error(E_WARNING, "Array not passed by reference in call to end()");
    }
	zend_hash_internal_pointer_end(target_hash);
	if (zend_hash_get_current_data(target_hash, (void **) &entry) == FAILURE) {
		RETURN_FALSE;
	}
	*return_value = **entry;
	pval_copy_constructor(return_value);
}


PHP_FUNCTION(prev)
{
	pval *array, **entry;
	HashTable *target_hash;

	if (ARG_COUNT(ht) != 1 || getParameters(ht, 1, &array) == FAILURE) {
		WRONG_PARAM_COUNT;
	}
	target_hash = HASH_OF(array);
	if (!target_hash) {
		php_error(E_WARNING, "Variable passed to prev() is not an array or object");
		RETURN_FALSE;
	}
	zend_hash_move_backwards(target_hash);
	if (zend_hash_get_current_data(target_hash, (void **) &entry) == FAILURE) {
		RETURN_FALSE;
	}
	
	*return_value = **entry;
	pval_copy_constructor(return_value);
}


PHP_FUNCTION(next)
{
	pval *array, **entry;
	HashTable *target_hash;

	if (ARG_COUNT(ht) != 1 || getParameters(ht, 1, &array) == FAILURE) {
		WRONG_PARAM_COUNT;
	}
	target_hash = HASH_OF(array);
	if (!target_hash) {
		php_error(E_WARNING, "Variable passed to next() is not an array or object");
		RETURN_FALSE;
	}
	zend_hash_move_forward(target_hash);
	if (zend_hash_get_current_data(target_hash, (void **) &entry) == FAILURE) {
		RETURN_FALSE;
	}
	
	*return_value = **entry;
	pval_copy_constructor(return_value);
}

	
PHP_FUNCTION(reset)
{
	pval *array, **entry;
	HashTable *target_hash;

	if (ARG_COUNT(ht) != 1 || getParameters(ht, 1, &array) == FAILURE) {
		WRONG_PARAM_COUNT;
	}
	target_hash = HASH_OF(array);
	if (!target_hash) {
		php_error(E_WARNING, "Variable passed to reset() is not an array or object");
		return;
	}
	zend_hash_internal_pointer_reset(target_hash);
	if (zend_hash_get_current_data(target_hash, (void **) &entry) == FAILURE) {
		return;
	}
		
	*return_value = **entry;
	pval_copy_constructor(return_value);
	INIT_PZVAL(return_value);
}

PHP_FUNCTION(current)
{
	pval *array, **entry;
	HashTable *target_hash;

	if (ARG_COUNT(ht) != 1 || getParameters(ht, 1, &array) == FAILURE) {
		WRONG_PARAM_COUNT;
	}
	target_hash = HASH_OF(array);
	if (!target_hash) {
		php_error(E_WARNING, "Variable passed to current() is not an array or object");
		return;
	}
	if (zend_hash_get_current_data(target_hash, (void **) &entry) == FAILURE) {
		return;
	}
	*return_value = **entry;
	pval_copy_constructor(return_value);
}


PHP_FUNCTION(key)
{
	pval *array;
	char *string_key;
	ulong num_key;
	HashTable *target_hash;

	if (ARG_COUNT(ht) != 1 || getParameters(ht, 1, &array) == FAILURE) {
		WRONG_PARAM_COUNT;
	}
	target_hash = HASH_OF(array);
	if (!target_hash) {
		php_error(E_WARNING, "Variable passed to key() is not an array or object");
		return;
	}
    if (!ParameterPassedByReference(ht,1)) {
        php_error(E_WARNING, "Array not passed by reference in call to key()");
    }
	switch (zend_hash_get_current_key(target_hash, &string_key, &num_key)) {
		case HASH_KEY_IS_STRING:
			return_value->value.str.val = string_key;
			return_value->value.str.len = strlen(string_key);
			return_value->type = IS_STRING;
			break;
		case HASH_KEY_IS_LONG:
			return_value->type = IS_LONG;
			return_value->value.lval = num_key;
			break;
		case HASH_KEY_NON_EXISTANT:
			return;
	}
}

#ifdef __cplusplus
void php3_flush(HashTable *)
#else
PHP_FUNCTION(flush)
#endif
{
	SLS_FETCH();
	
#if APACHE
#  if MODULE_MAGIC_NUMBER > 19970110
	rflush(((request_rec *) SG(server_context)));
#  else
	bflush(((request_rec *) SG(server_context))->connection->client);
#  endif
#endif
#if FHTTPD
       /*FIXME -- what does it flush really? the whole response?*/
#endif
#if CGI_BINARY
	fflush(stdout);
#endif
#if USE_SAPI
	sapi_rqst->flush(sapi_rqst->scid);
#endif
}


PHP_FUNCTION(sleep)
{
	pval *num;

	if (ARG_COUNT(ht) != 1 || getParameters(ht, 1, &num) == FAILURE) {
		WRONG_PARAM_COUNT;
	}
	convert_to_long(num);
	sleep(num->value.lval);
}

PHP_FUNCTION(usleep)
{
#if HAVE_USLEEP
	pval *num;

	if (ARG_COUNT(ht) != 1 || getParameters(ht, 1, &num) == FAILURE) {
		WRONG_PARAM_COUNT;
	}
	convert_to_long(num);
	usleep(num->value.lval);
#endif
}

PHP_FUNCTION(gettype)
{
	pval *arg;

	if (ARG_COUNT(ht) != 1 || getParameters(ht, 1, &arg) == FAILURE) {
		WRONG_PARAM_COUNT;
	}
	switch (arg->type) {
		case IS_BOOL:
			RETVAL_STRING("boolean",1);
			break;
		case IS_LONG:
			RETVAL_STRING("integer",1);
			break;
		case IS_RESOURCE:
			RETVAL_STRING("resource",1);
			break;
		case IS_DOUBLE:
			RETVAL_STRING("double",1);
			break;
		case IS_STRING:
			RETVAL_STRING("string",1);
			break;
		case IS_ARRAY:
			RETVAL_STRING("array",1);
			break;
		case IS_OBJECT:
			RETVAL_STRING("object",1);
			break;
			/*
			{
				char *result;
				int res_len;
				
				res_len = sizeof("object of type ")-1 + arg->value.obj.ce->name_length;
				result = (char *) emalloc(res_len+1);
				sprintf(result, "object of type %s", arg->value.obj.ce->name);
				RETVAL_STRINGL(result, res_len, 0);
			}
			*/
			break;
		default:
			RETVAL_STRING("unknown type",1);
	}
}


PHP_FUNCTION(settype)
{
	pval *var, *type;
	char *new_type;

	if (ARG_COUNT(ht) != 2 || getParameters(ht, 2, &var, &type) ==
		FAILURE) {
		WRONG_PARAM_COUNT;
	}
	convert_to_string(type);
	new_type = type->value.str.val;

	if (!strcasecmp(new_type, "integer")) {
		convert_to_long(var);
	} else if (!strcasecmp(new_type, "double")) {
		convert_to_double(var);
	} else if (!strcasecmp(new_type, "string")) {
		convert_to_string(var);
	} else if (!strcasecmp(new_type, "array")) {
		convert_to_array(var);
	} else if (!strcasecmp(new_type, "object")) {
		convert_to_object(var);
	} else if (!strcasecmp(new_type, "boolean")) {
		convert_to_boolean(var);
	} else if (!strcasecmp(new_type, "resource")) {
		php_error(E_WARNING, "settype: cannot convert to resource type");
		RETURN_FALSE;
	} else {
		php_error(E_WARNING, "settype: invalid type");
		RETURN_FALSE;
	}
	RETVAL_TRUE;
}


PHP_FUNCTION(min)
{
	int argc=ARG_COUNT(ht);
	pval **result;

	if (argc<=0) {
		php_error(E_WARNING, "min: must be passed at least 1 value");
		var_uninit(return_value);
		return;
	}
	if (argc == 1) {
		pval *arr;

		if (getParameters(ht, 1, &arr) == FAILURE ||
			arr->type != IS_ARRAY) {
			WRONG_PARAM_COUNT;
		}
		if (zend_hash_minmax(arr->value.ht, array_data_compare, 0, (void **) &result)==SUCCESS) {
			*return_value = **result;
			pval_copy_constructor(return_value);
		} else {
			php_error(E_WARNING, "min: array must contain at least 1 element");
			var_uninit(return_value);
		}
	} else {
		pval **args = (pval **) emalloc(sizeof(pval *)*ARG_COUNT(ht));
		pval *min, result;
		int i;

		if (getParametersArray(ht, ARG_COUNT(ht), args)==FAILURE) {
			efree(args);
			WRONG_PARAM_COUNT;
		}

		min = args[0];

		for (i=1; i<ARG_COUNT(ht); i++) {
			is_smaller_function(&result, args[i], min);
			if (result.value.lval == 1) {
				min = args[i];
			}
		}

		*return_value = *min;
		pval_copy_constructor(return_value);

		efree(args);
	}
}


PHP_FUNCTION(max)
{
	int argc=ARG_COUNT(ht);
	pval **result;

	if (argc<=0) {
		php_error(E_WARNING, "max: must be passed at least 1 value");
		var_uninit(return_value);
		return;
	}
	if (argc == 1) {
		pval *arr;

		if (getParameters(ht, 1, &arr) == FAILURE ||
			arr->type != IS_ARRAY) {
			WRONG_PARAM_COUNT;
		}
		if (zend_hash_minmax(arr->value.ht, array_data_compare, 1, (void **) &result)==SUCCESS) {
			*return_value = **result;
			pval_copy_constructor(return_value);
		} else {
			php_error(E_WARNING, "max: array must contain at least 1 element");
			var_uninit(return_value);
		}
	} else {
		pval **args = (pval **) emalloc(sizeof(pval *)*ARG_COUNT(ht));
		pval *max, result;
		int i;

		if (getParametersArray(ht, ARG_COUNT(ht), args)==FAILURE) {
			efree(args);
			WRONG_PARAM_COUNT;
		}

		max = args[0];

		for (i=1; i<ARG_COUNT(ht); i++) {
			is_smaller_or_equal_function(&result, args[i], max);
			if (result.value.lval == 0) {
				max = args[i];
			}
		}

		*return_value = *max;
		pval_copy_constructor(return_value);

		efree(args);
	}
}

static zval **php_array_walk_func_name;

static int php_array_walk(HashTable *target_hash, zval **userdata)
{
	zval **args[3],			/* Arguments to userland function */
		   retval,			/* Return value - unused */
		  *key;				/* Entry key */
	char  *string_key;
	ulong  num_key;
	CLS_FETCH();

	/* Allocate space for key */
	MAKE_STD_ZVAL(key);
	
	/* Set up known arguments */
	args[1] = &key;
	args[2] = userdata;

	/* Iterate through hash */
	while(zend_hash_get_current_data(target_hash, (void **)&args[0]) == SUCCESS) {
		/* Set up the key */
		if (zend_hash_get_current_key(target_hash, &string_key, &num_key) == HASH_KEY_IS_LONG) {
			key->type = IS_LONG;
			key->value.lval = num_key;
		} else {
			key->type = IS_STRING;
			key->value.str.val = string_key;
			key->value.str.len = strlen(string_key);
		}
		
		/* Call the userland function */
		call_user_function_ex(CG(function_table), NULL, *php_array_walk_func_name,
						   &retval, userdata ? 3 : 2, args, 0);
		
		/* Clean up the key */
		if (zend_hash_get_current_key_type(target_hash) == HASH_KEY_IS_STRING)
			efree(key->value.str.val);
		
		zend_hash_move_forward(target_hash);
    }
	efree(key);
	
	return 0;
}

/* {{{ proto array_walk(array input, string funcname [, mixed userdata])
   Apply a user function to every member of an array */
PHP_FUNCTION(array_walk) {
	int    argc;
	zval **array,
		 **userdata = NULL,
		 **old_walk_func_name;
	HashTable *target_hash;

	argc = ARG_COUNT(ht);
	old_walk_func_name = php_array_walk_func_name;
	if (argc < 2 || argc > 3 ||
		getParametersEx(argc, &array, &php_array_walk_func_name, &userdata) == FAILURE) {
		php_array_walk_func_name = old_walk_func_name;
		WRONG_PARAM_COUNT;
	}
	target_hash = HASH_OF(*array);
	if (!target_hash) {
		php_error(E_WARNING, "Wrong datatype in array_walk() call");
		php_array_walk_func_name = old_walk_func_name;
		return;
	}
	convert_to_string_ex(php_array_walk_func_name);
	php_array_walk(target_hash, userdata);
	php_array_walk_func_name = old_walk_func_name;
	RETURN_TRUE;
}

#if 0
PHP_FUNCTION(max)
{
	pval **argv;
	int argc, i;
	unsigned short max_type = IS_LONG;

	argc = ARG_COUNT(ht);
	/* if there is one parameter and this parameter is an array of
	 * 2 or more elements, use that array
	 */
	if (argc == 1) {
		argv = (pval **)emalloc(sizeof(pval *) * argc);
		if (getParametersArray(ht, argc, argv) == FAILURE ||
			argv[0]->type != IS_ARRAY) {
			WRONG_PARAM_COUNT;
		}
		if (argv[0]->value.ht->nNumOfElements < 2) {
			php_error(E_WARNING,
					   "min: array must contain at least 2 elements");
			RETURN_FALSE;
		}
		/* replace the function parameters with the array */
		ht = argv[0]->value.ht;
		argc = zend_hash_num_elements(ht);
		efree(argv);
	} else if (argc < 2) {
		WRONG_PARAM_COUNT;
	}
	argv = (pval **)emalloc(sizeof(pval *) * argc);
	if (getParametersArray(ht, argc, argv) == FAILURE) {
		efree(argv);
		WRONG_PARAM_COUNT;
	}
	/* figure out what types to compare
	 * if the arguments contain a double, convert all of them to a double
	 * else convert all of them to long
	 */
	for (i = 0; i < argc; i++) {
		if (argv[i]->type == IS_DOUBLE) {
			max_type = IS_DOUBLE;
			break;
		}
	}
	if (max_type == IS_LONG) {
		convert_to_long(argv[0]);
		return_value->value.lval = argv[0]->value.lval;
		for (i = 1; i < argc; i++) {
			convert_to_long(argv[i]);
			if (argv[i]->value.lval > return_value->value.lval) {
				return_value->value.lval = argv[i]->value.lval;
			}
		}
	} else {
		convert_to_double(argv[0]);
		return_value->value.dval = argv[0]->value.dval;
		for (i = 1; i < argc; i++) {
			convert_to_double(argv[i]);
			if (argv[i]->value.dval > return_value->value.dval) {
				return_value->value.dval = argv[i]->value.dval;
			}
		}
	}
	efree(argv);
	return_value->type = max_type;
}
#endif

PHP_FUNCTION(get_current_user)
{
	RETURN_STRING(_php3_get_current_user(),1);
}


PHP_FUNCTION(get_cfg_var)
{
	pval *varname;
	char *value;
	
	if (ARG_COUNT(ht)!=1 || getParameters(ht, 1, &varname)==FAILURE) {
		WRONG_PARAM_COUNT;
	}
	
	convert_to_string(varname);
	
	if (cfg_get_string(varname->value.str.val,&value)==FAILURE) {
		RETURN_FALSE;
	}
	RETURN_STRING(value,1);
}

PHP_FUNCTION(set_magic_quotes_runtime)
{
	pval *new_setting;
	PLS_FETCH();
	
	if (ARG_COUNT(ht)!=1 || getParameters(ht, 1, &new_setting)==FAILURE) {
		RETURN_FALSE;
	}
	convert_to_boolean(new_setting);
	
	PG(magic_quotes_runtime) = (zend_bool) new_setting->value.lval;
	RETURN_TRUE;
}
	
PHP_FUNCTION(get_magic_quotes_runtime)
{
	PLS_FETCH();

	RETURN_LONG(PG(magic_quotes_runtime));
}

PHP_FUNCTION(get_magic_quotes_gpc)
{
	PLS_FETCH();

	RETURN_LONG(PG(magic_quotes_gpc));
}


void php3_is_type(INTERNAL_FUNCTION_PARAMETERS,int type)
{
	pval **arg;
	
	if (ARG_COUNT(ht)!=1 || getParametersEx(1, &arg)==FAILURE) {
		RETURN_FALSE;
	}
	if ((*arg)->type == type) {
		RETURN_TRUE;
	} else {
		RETURN_FALSE;
	}
}


PHP_FUNCTION(is_long) 
{
	php3_is_type(INTERNAL_FUNCTION_PARAM_PASSTHRU, IS_LONG);
}

PHP_FUNCTION(is_double)
{
	php3_is_type(INTERNAL_FUNCTION_PARAM_PASSTHRU, IS_DOUBLE);
}

PHP_FUNCTION(is_string)
{ 
	php3_is_type(INTERNAL_FUNCTION_PARAM_PASSTHRU, IS_STRING);
}

PHP_FUNCTION(is_array)
{
	php3_is_type(INTERNAL_FUNCTION_PARAM_PASSTHRU, IS_ARRAY);
}

PHP_FUNCTION(is_object)
{
	php3_is_type(INTERNAL_FUNCTION_PARAM_PASSTHRU, IS_OBJECT);
}


/* 
	1st arg = error message
	2nd arg = error option
	3rd arg = optional parameters (email address or tcp address)
	4th arg = used for additional headers if email

  error options
    0 = send to php_error_log (uses syslog or file depending on ini setting)
	1 = send via email to 3rd parameter 4th option = additional headers
	2 = send via tcp/ip to 3rd parameter (name or ip:port)
	3 = save to file in 3rd parameter
*/

PHP_FUNCTION(error_log)
{
	pval *string, *erropt = NULL, *option = NULL, *emailhead = NULL;
	int opt_err = 0;
	char *message, *opt=NULL, *headers=NULL;

	switch(ARG_COUNT(ht)) {
	case 1:
		if (getParameters(ht,1,&string) == FAILURE) {
			php_error(E_WARNING,"Invalid argument 1 in error_log");
			RETURN_FALSE;
		}
		break;
	case 2:
		if (getParameters(ht,2,&string,&erropt) == FAILURE) {
			php_error(E_WARNING,"Invalid arguments in error_log");
			RETURN_FALSE;
		}
		convert_to_long(erropt);
		opt_err=erropt->value.lval;
		break;
	case 3:
		if (getParameters(ht,3,&string,&erropt,&option) == FAILURE){
			php_error(E_WARNING,"Invalid arguments in error_log");
			RETURN_FALSE;
		}
		convert_to_long(erropt);
		opt_err=erropt->value.lval;
		convert_to_string(option);
		opt=option->value.str.val;
		break;
	case 4:
		if (getParameters(ht,4,&string,&erropt,&option,&emailhead) == FAILURE){
			php_error(E_WARNING,"Invalid arguments in error_log");
			RETURN_FALSE;
		}
		break;
	default:
		WRONG_PARAM_COUNT;
	}

	convert_to_string(string);
	message=string->value.str.val;
	if (erropt != NULL) {
		convert_to_long(erropt);
		opt_err=erropt->value.lval;
	}
	if (option != NULL) {
		convert_to_string(option);
		opt=option->value.str.val;
	}
	if (emailhead != NULL) {
		convert_to_string(emailhead);
		headers=emailhead->value.str.val;
	}

	if (_php_error_log(opt_err,message,opt,headers)==FAILURE) {
		RETURN_FALSE;
	}

	RETURN_TRUE;
}

PHPAPI int _php_error_log(int opt_err,char *message,char *opt,char *headers){
	FILE *logfile;
	int issock=0, socketd=0;;

	switch(opt_err){
	case 1: /*send an email*/
		{
#if HAVE_SENDMAIL
		if (!_php3_mail(opt,"PHP3 error_log message",message,headers)){
			return FAILURE;
		}
#else
		php_error(E_WARNING,"Mail option not available!");
		return FAILURE;
#endif
		}
		break;
	case 2: /*send to an address */
		php_error(E_WARNING,"TCP/IP option not available!");
		return FAILURE;
		break;
	case 3: /*save to a file*/
		logfile=php3_fopen_wrapper(opt,"a", (IGNORE_URL|ENFORCE_SAFE_MODE), &issock, &socketd);
		if(!logfile) {
			php_error(E_WARNING,"error_log: Unable to write to %s",opt);
			return FAILURE;
		}
		fwrite(message,strlen(message),1,logfile);
		fclose(logfile);
		break;
	default:
		php3_log_err(message);
		break;
	}
	return SUCCESS;
}


PHP_FUNCTION(call_user_func)
{
	pval ***params;
	pval retval;
	int arg_count=ARG_COUNT(ht);
	CLS_FETCH();
	
	if (arg_count<1) {
		WRONG_PARAM_COUNT;
	}
	params = (pval ***) emalloc(sizeof(pval **)*arg_count);
	
	if (getParametersArrayEx(arg_count, params)==FAILURE) {
		efree(params);
		RETURN_FALSE;
	}
	SEPARATE_ZVAL(params[0]);
	convert_to_string(*params[0]);
	if (call_user_function_ex(CG(function_table), NULL, *params[0], &retval, arg_count-1, params+1, 1)==SUCCESS) {
		*return_value = retval;
	} else {
		php_error(E_WARNING,"Unable to call %s() - function does not exist", (*params[0])->value.str.val);
	}
	efree(params);
}


PHP_FUNCTION(call_user_method)
{
	pval ***params;
	pval retval;
	int arg_count=ARG_COUNT(ht);
	CLS_FETCH();
	
	if (arg_count<2) {
		WRONG_PARAM_COUNT;
	}
	params = (pval ***) emalloc(sizeof(pval **)*arg_count);
	
	if (getParametersArrayEx(arg_count, params)==FAILURE) {
		efree(params);
		RETURN_FALSE;
	}
	if ((*params[1])->type != IS_OBJECT) {
		php_error(E_WARNING,"2nd argument is not an object\n");
		efree(params);
		RETURN_FALSE;
	}
	SEPARATE_ZVAL(params[0]);
	SEPARATE_ZVAL(params[1]);
	convert_to_string(*params[0]);
	if (call_user_function_ex(CG(function_table), *params[1], *params[0], &retval, arg_count-2, params+2, 1)==SUCCESS) {
		*return_value = retval;
	} else {
		php_error(E_WARNING,"Unable to call %s() - function does not exist", (*params[0])->value.str.val);
	}
	efree(params);
}


int user_shutdown_function_dtor(php_shutdown_function_entry *shutdown_function_entry)
{
	pval retval;
	int i;
	CLS_FETCH();

	if (call_user_function(CG(function_table), NULL, shutdown_function_entry->arguments[0], &retval, shutdown_function_entry->arg_count-1, shutdown_function_entry->arguments+1)==SUCCESS) {
		pval_destructor(&retval);
	}
	for (i=0; i<shutdown_function_entry->arg_count; i++) {
		zval_ptr_dtor(&shutdown_function_entry->arguments[i]);
	}
	efree(shutdown_function_entry->arguments);
	return 1;
}


void php3_call_shutdown_functions(void)
{
	if (user_shutdown_function_names) {
		zend_hash_destroy(user_shutdown_function_names);
		efree(user_shutdown_function_names);
	}
}

/* {{{ proto void register_shutdown_function(string function_name)
   Register a user-level function to be called on request termination */
PHP_FUNCTION(register_shutdown_function)
{
	php_shutdown_function_entry shutdown_function_entry;
	int i;

	shutdown_function_entry.arg_count = ARG_COUNT(ht);

	if (shutdown_function_entry.arg_count<1) {
		WRONG_PARAM_COUNT;
	}
	shutdown_function_entry.arguments = (pval **) emalloc(sizeof(pval *)*shutdown_function_entry.arg_count);

	if (getParametersArray(ht, shutdown_function_entry.arg_count, shutdown_function_entry.arguments)==FAILURE) {
		RETURN_FALSE;
	}	
	convert_to_string(shutdown_function_entry.arguments[0]);
	if (!user_shutdown_function_names) {
		user_shutdown_function_names = (HashTable *) emalloc(sizeof(HashTable));
		zend_hash_init(user_shutdown_function_names, 0, NULL, (int (*)(void *))user_shutdown_function_dtor, 0);
	}

	for (i=0; i<shutdown_function_entry.arg_count; i++) {
		shutdown_function_entry.arguments[i]->refcount++;
	}
	zend_hash_next_index_insert(user_shutdown_function_names, &shutdown_function_entry, sizeof(php_shutdown_function_entry), NULL);
}
/* }}} */


ZEND_API void php_get_highlight_struct(zend_syntax_highlighter_ini *syntax_highlighter_ini)
{
	syntax_highlighter_ini->highlight_comment = INI_STR("highlight.comment");
	syntax_highlighter_ini->highlight_default = INI_STR("highlight.default");
	syntax_highlighter_ini->highlight_html = INI_STR("highlight.html");
	syntax_highlighter_ini->highlight_keyword = INI_STR("highlight.keyword");
	syntax_highlighter_ini->highlight_string = INI_STR("highlight.string");
}


/* {{{ proto void highlight_file(string file_name)
   Syntax highlight a source file */
PHP_FUNCTION(highlight_file)
{
	pval *filename;
	zend_syntax_highlighter_ini syntax_highlighter_ini;

	
	if (ARG_COUNT(ht)!=1 || getParameters(ht, 1, &filename)==FAILURE) {
		WRONG_PARAM_COUNT;
	}
	convert_to_string(filename);

	php_get_highlight_struct(&syntax_highlighter_ini);

	if (highlight_file(filename->value.str.val, &syntax_highlighter_ini)==FAILURE) {
		RETURN_FALSE;
	}
	RETURN_TRUE;
}
/* }}} */


/* {{{ proto void highlight_string(string string)
   Syntax highlight a string */
PHP_FUNCTION(highlight_string)
{
	pval *expr;
	zend_syntax_highlighter_ini syntax_highlighter_ini;
	
	if (ARG_COUNT(ht)!=1 || getParameters(ht, 1, &expr)==FAILURE) {
		WRONG_PARAM_COUNT;
	}
	
	convert_to_string(expr);

	php_get_highlight_struct(&syntax_highlighter_ini);

	if (highlight_string(expr, &syntax_highlighter_ini)==FAILURE) {
		RETURN_FALSE;
	}
	RETURN_TRUE;
}
/* }}} */


pval test_class_get_property(zend_property_reference *property_reference)
{
	pval result;
	zend_overloaded_element *overloaded_property;
	zend_llist_element *element;


	printf("Reading a property from a TestClass object:\n");

	for (element=property_reference->elements_list.head; element; element=element->next) {
		overloaded_property = (zend_overloaded_element *) element->data;
		switch (overloaded_property->type) {
			case IS_ARRAY:
				printf("Array offset:  ");
				break;
			case IS_OBJECT:
				printf("Object property:  ");
				break;
		}
		switch (overloaded_property->element.type) {
			case IS_LONG:
				printf("%ld (numeric)\n", overloaded_property->element.value.lval);
				break;
			case IS_STRING:
				printf("'%s'\n", overloaded_property->element.value.str.val);
				break;
		}
		pval_destructor(&overloaded_property->element);
	}
		
	result.value.str.val = estrndup("testing", 7);
	result.value.str.len = 7;
	result.type = IS_STRING;
	return result;
}


int test_class_set_property(zend_property_reference *property_reference, pval *value)
{
	zend_overloaded_element *overloaded_property;
	zend_llist_element *element;

	printf("Writing to a property from a TestClass object:\n");
	printf("Writing '");
	zend_print_variable(value);
	printf("'\n");

	for (element=property_reference->elements_list.head; element; element=element->next) {
		overloaded_property = (zend_overloaded_element *) element->data;
		switch (overloaded_property->type) {
			case IS_ARRAY:
				printf("Array offset:  ");
				break;
			case IS_OBJECT:
				printf("Object property:  ");
				break;
		}
		switch (overloaded_property->element.type) {
			case IS_LONG:
				printf("%ld (numeric)\n", overloaded_property->element.value.lval);
				break;
			case IS_STRING:
				printf("'%s'\n", overloaded_property->element.value.str.val);
				break;
		}
		pval_destructor(&overloaded_property->element);
	}
		
	return 0;
}



void test_class_call_function(INTERNAL_FUNCTION_PARAMETERS, zend_property_reference *property_reference)
{
	zend_overloaded_element *overloaded_property;
	zend_llist_element *element;


	printf("Reading a property from a TestClass object:\n");

	for (element=property_reference->elements_list.head; element; element=element->next) {
		overloaded_property = (zend_overloaded_element *) element->data;
		switch (overloaded_property->type) {
			case IS_ARRAY:
				printf("Array offset:  ");
				break;
			case IS_OBJECT:
				printf("Object property:  ");
				break;
			case IS_METHOD:
				printf("Overloaded method:  ");
		}
		switch (overloaded_property->element.type) {
			case IS_LONG:
				printf("%ld (numeric)\n", overloaded_property->element.value.lval);
				break;
			case IS_STRING:
				printf("'%s'\n", overloaded_property->element.value.str.val);
				break;
		}
		pval_destructor(&overloaded_property->element);
	}
		
	printf("%d arguments\n", ARG_COUNT(ht));
	return_value->value.str.val = estrndup("testing", 7);
	return_value->value.str.len = 7;
	return_value->type = IS_STRING;
}


void test_class_startup()
{
	zend_class_entry test_class_entry;

	INIT_OVERLOADED_CLASS_ENTRY(test_class_entry, "OverloadedTestClass", NULL,
								test_class_call_function,
								test_class_get_property,
								test_class_set_property);

	register_internal_class(&test_class_entry);
}


PHP_FUNCTION(ob_start)
{
	php_start_ob_buffering();
}


PHP_FUNCTION(ob_end_flush)
{
	php_end_ob_buffering(1);
}


PHP_FUNCTION(ob_end_clean)
{
	php_end_ob_buffering(0);
}


PHP_FUNCTION(ob_get_contents)
{
	if (php_ob_get_buffer(return_value)==FAILURE) {
		RETURN_FALSE;
	}
}


PHP_FUNCTION(ini_get)
{
	pval *varname;

	if (ARG_COUNT(ht)!=1 || getParameters(ht, 1, &varname)==FAILURE) {
		WRONG_PARAM_COUNT;
	}

	return_value->value.str.val = php_ini_string(varname->value.str.val, varname->value.str.len+1, 0);

	if (!return_value->value.str.val) {
		RETURN_FALSE;
	}

	return_value->value.str.len = strlen(return_value->value.str.val);
	return_value->type = IS_STRING;
	pval_copy_constructor(return_value);
}


PHP_FUNCTION(ini_alter)
{
	pval *varname, *new_value;
	char *old_value;

	if (ARG_COUNT(ht)!=2 || getParameters(ht, 2, &varname, &new_value)==FAILURE) {
		WRONG_PARAM_COUNT;
	}

	old_value = php_ini_string(varname->value.str.val, varname->value.str.len+1, 0);


	convert_to_string(new_value);

	if (php_alter_ini_entry(varname->value.str.val, varname->value.str.len+1, new_value->value.str.val, new_value->value.str.len, PHP_INI_USER)==FAILURE) {
		RETURN_FALSE;
	}
	if (old_value) {
		RETURN_STRING(old_value, 1);
	} else {
		RETURN_FALSE;
	}
}



PHP_FUNCTION(ini_restore)
{
	pval *varname;

	if (ARG_COUNT(ht)!=1 || getParameters(ht, 1, &varname)==FAILURE) {
		WRONG_PARAM_COUNT;
	}

	convert_to_string(varname);

	php_restore_ini_entry(varname->value.str.val, varname->value.str.len);
}


PHP_FUNCTION(print_r)
{
	pval *expr;

	if (ARG_COUNT(ht)!=1 || getParameters(ht, 1, &expr)==FAILURE) {
		WRONG_PARAM_COUNT;
	}

	zend_print_pval_r(expr, 0);
	RETURN_TRUE;
}


/* This should go back to PHP */

/* {{{ proto int connection_aborted(void)
   Returns true if client disconnected */
PHP_FUNCTION(connection_aborted)
{
	PLS_FETCH();

    RETURN_LONG(PG(connection_status)&PHP_CONNECTION_ABORTED);
}
/* }}} */

/* {{{ proto int connection_timeout(void)
   Returns true if script timed out */
PHP_FUNCTION(connection_timeout)
{
	PLS_FETCH();

    RETURN_LONG(PG(connection_status)&PHP_CONNECTION_TIMEOUT);
}
/* }}} */

/* {{{ proto int connection_status(void)
   Returns the connection status bitfield */
PHP_FUNCTION(connection_status)
{
	PLS_FETCH();

    RETURN_LONG(PG(connection_status));
}
/* }}} */

/* {{{ proto int ignore_user_abort(boolean value)
   Set whether we want to ignore a user abort event or not */
PHP_FUNCTION(ignore_user_abort)
{
    pval *arg;
    int old_setting;
	PLS_FETCH();

    old_setting = PG(ignore_user_abort);
    switch (ARG_COUNT(ht)) {
        case 0:
            break;
        case 1:
            if (getParameters(ht,1,&arg) == FAILURE) {
                RETURN_FALSE;
            }
            convert_to_boolean(arg);
            PG(ignore_user_abort) = (zend_bool) arg->value.lval;
            break;
        default:
            WRONG_PARAM_COUNT;
            break;
    }
    RETURN_LONG(old_setting);
}
/* }}} */

/* {{{ proto bool function_exists(string function_name) 
   Checks if a given function has been defined */
PHP_FUNCTION(function_exists)
{
	pval *fname;
	pval *tmp;
	char *lcname;
	CLS_FETCH();
	
	if (ARG_COUNT(ht)!=1 || getParameters(ht, 1, &fname)==FAILURE) {
		WRONG_PARAM_COUNT;
	}
	
	lcname = estrdup(fname->value.str.val);
	zend_str_tolower(lcname, fname->value.str.len);
	if (zend_hash_find(CG(function_table), lcname,
						fname->value.str.len+1, (void**)&tmp) == FAILURE) {
		efree(lcname);
		RETURN_FALSE;
	} else {
		efree(lcname);
		RETURN_TRUE;
	}
}

/* }}} */


/* {{{ proto bool in_array(mixed needle, array haystack)
   Checks if the given value exists in the array */
PHP_FUNCTION(in_array)
{
	zval *value,				/* value to check for */
		 *array,				/* array to check in */
		 **entry_ptr,			/* pointer to array entry */
		 *entry,				/* actual array entry */
		  res;					/* comparison result */
	HashTable *target_hash;		/* array hashtable */

	if (ARG_COUNT(ht) != 2 || getParameters(ht, 2, &value, &array) == FAILURE) {
		WRONG_PARAM_COUNT;
	}
	
	if (value->type == IS_ARRAY || value->type == IS_OBJECT) {
		zend_error(E_WARNING, "Wrong datatype for first argument in call to in_array()");
		return;
	}
	
	if (array->type != IS_ARRAY) {
		zend_error(E_WARNING, "Wrong datatype for second argument in call to in_array()");
		return;
	}

	target_hash = HASH_OF(array);
	zend_hash_internal_pointer_reset(target_hash);
	while(zend_hash_get_current_data(target_hash, (void **)&entry_ptr) == SUCCESS) {
		entry = *entry_ptr;
     	is_equal_function(&res, value, entry);
		if (zval_is_true(&res)) {
			RETURN_TRUE;
		}
		
		zend_hash_move_forward(target_hash);
	}
	
	RETURN_FALSE;
}
/* }}} */


/* {{{ int _valid_var_name(char *varname) */
static int _valid_var_name(char *varname)
{
	int len, i;
	
	if (!varname)
		return 0;
	
	len = strlen(varname);
	
	if (!isalpha((int)varname[0]) && varname[0] != '_')
		return 0;
	
	if (len > 1) {
		for(i=1; i<len; i++) {
			if (!isalnum((int)varname[i]) && varname[i] != '_') {
				return 0;
			}
		}
	}
	
	return 1;
}
/* }}} */


/* {{{ proto void extract(array var_array, int extract_type [, string prefix])
   Imports variables into symbol table from an array */
PHP_FUNCTION(extract)
{
	zval *var_array, *etype, *prefix;
	zval **entry_ptr, *entry, *exist;
	zval *data;
	char *varname, *finalname;
	ulong lkey;
	int res, extype;
	ELS_FETCH();

	switch(ARG_COUNT(ht)) {
		case 1:
			if (getParameters(ht, 1, &var_array) == FAILURE) {
				WRONG_PARAM_COUNT;
			}
			extype = EXTR_OVERWRITE;
			break;

		case 2:
			if (getParameters(ht, 2, &var_array, &etype) == FAILURE) {
				WRONG_PARAM_COUNT;
			}
			convert_to_long(etype);
			extype = etype->value.lval;
			if (extype > EXTR_SKIP && extype <= EXTR_PREFIX_ALL) {
				WRONG_PARAM_COUNT;
			}
			break;
			
		case 3:
			if (getParameters(ht, 3, &var_array, &etype, &prefix) == FAILURE) {
				WRONG_PARAM_COUNT;
			}
			convert_to_long(etype);
			extype = etype->value.lval;
			break;

		default:
			WRONG_PARAM_COUNT;
			break;
	}
	
	if (extype < EXTR_OVERWRITE || extype > EXTR_PREFIX_ALL) {
		zend_error(E_WARNING, "Wrong argument in call to extract()");
		return;
	}
	
	if (var_array->type != IS_ARRAY) {
		zend_error(E_WARNING, "Wrong datatype in call to extract()");
		return;
	}
		
	zend_hash_internal_pointer_reset(var_array->value.ht);
	while(zend_hash_get_current_data(var_array->value.ht, (void **)&entry_ptr) == SUCCESS) {
		entry = *entry_ptr;

		if (zend_hash_get_current_key(var_array->value.ht, &varname, &lkey) ==
				HASH_KEY_IS_STRING) {

			if (_valid_var_name(varname)) {
				finalname = NULL;

				res = zend_hash_find(EG(active_symbol_table),
									  varname, strlen(varname)+1, (void**)&exist);
				switch (extype) {
					case EXTR_OVERWRITE:
						finalname = estrdup(varname);
						break;

					case EXTR_PREFIX_SAME:
						if (res != SUCCESS)
							finalname = estrdup(varname);
						/* break omitted intentionally */

					case EXTR_PREFIX_ALL:
						if (!finalname) {
							finalname = emalloc(strlen(varname) + prefix->value.str.len + 2);
							strcpy(finalname, prefix->value.str.val);
							strcat(finalname, "_");
							strcat(finalname, varname);
						}
						break;

					default:
						if (res != SUCCESS)
							finalname = estrdup(varname);
						break;
				}

				if (finalname) {
					data = (zval *)emalloc(sizeof(zval));
					*data = *entry;
					zval_copy_ctor(data);
					INIT_PZVAL(data);

					zend_hash_update(EG(active_symbol_table), finalname,
									  strlen(finalname)+1, &data, sizeof(zval *), NULL);
					efree(finalname);
				}
			}

			efree(varname);
		}

		zend_hash_move_forward(var_array->value.ht);
	}
}
/* }}} */


/* {{{ void _compact_var(HashTable *eg_active_symbol_table, zval *return_value, zval *entry) */
static void _compact_var(HashTable *eg_active_symbol_table, zval *return_value, zval *entry)
{
	zval **value_ptr, *value, *data;
	
	if (entry->type == IS_STRING) {
		if (zend_hash_find(eg_active_symbol_table, entry->value.str.val,
						   entry->value.str.len+1, (void **)&value_ptr) != FAILURE) {
			value = *value_ptr;
			data = (zval *)emalloc(sizeof(zval));
			*data = *value;
			zval_copy_ctor(data);
			INIT_PZVAL(data);
			
			zend_hash_update(return_value->value.ht, entry->value.str.val,
							 entry->value.str.len+1, &data, sizeof(zval *), NULL);
		}
	}
	else if (entry->type == IS_ARRAY) {
		zend_hash_internal_pointer_reset(entry->value.ht);

		while(zend_hash_get_current_data(entry->value.ht, (void**)&value_ptr) == SUCCESS) {
			value = *value_ptr;

			_compact_var(eg_active_symbol_table, return_value, value);
			zend_hash_move_forward(entry->value.ht);
		}
	}
}
/* }}} */


/* {{{ proto array compact(string var_name | array var_names [, ... ])
   Creates a hash containing variables and their values */
PHP_FUNCTION(compact)
{
	zval **args;			/* function arguments array */
	int i;
	ELS_FETCH();
	
	args = (zval **)emalloc(ARG_COUNT(ht) * sizeof(zval *));
	
	if (getParametersArray(ht, ARG_COUNT(ht), args) == FAILURE) {
		efree(args);
		WRONG_PARAM_COUNT;
	}

	array_init(return_value);
	
	for (i=0; i<ARG_COUNT(ht); i++)
	{
		_compact_var(EG(active_symbol_table), return_value, args[i]);
	}
	
	efree(args);
}
/* }}} */

/* {{{ proto array range(int low, int high)
   Create an array containing the range of integers from low to high (inclusive) */
PHP_FUNCTION(range)
{
	zval *zlow, *zhigh;
	int low, high;
	
	if (ARG_COUNT(ht) != 2 || getParameters(ht,2,&zlow,&zhigh) == FAILURE) {
		WRONG_PARAM_COUNT;
	}
	convert_to_long(zlow);
	convert_to_long(zhigh);
	low = zlow->value.lval;
	high = zhigh->value.lval;

    /* allocate an array for return */
    if (array_init(return_value) == FAILURE) {
            RETURN_FALSE;
    }

	for (; low <= high; low++) {
		add_next_index_long(return_value, low);
	}	
}
/* }}} */


static int array_data_shuffle(const void *a, const void*b) {
	return (
	/* This is just a little messy. */
#ifdef HAVE_LRAND48
        lrand48()
#else
#ifdef HAVE_RANDOM
        random()
#else
        rand()
#endif
#endif
	% 2) ? 1 : -1;
}


/* {{{ proto int shuffle(array array_arg)
   Randomly shuffle the contents of an array */
PHP_FUNCTION(shuffle)
{
	zval **array;

	if (ARG_COUNT(ht) != 1 || getParametersEx(1, &array) == FAILURE) {
		WRONG_PARAM_COUNT;
	}
	if ((*array)->type != IS_ARRAY) {
		php_error(E_WARNING, "Wrong datatype in shuffle() call");
		return;
	}
	if (!ParameterPassedByReference(ht,1)) {
		php_error(E_WARNING, "Array not passed by reference in call to shuffle()");
		return;
	}
	if (zend_hash_sort((*array)->value.ht, array_data_shuffle, 1) == FAILURE) {
		return;
	}
	RETURN_TRUE;
}
/* }}} */


/* HashTable* _phpi_splice(HashTable *in_hash, int offset, int length,
						   zval ***list, int list_count, HashTable **removed) */
HashTable* _phpi_splice(HashTable *in_hash, int offset, int length,
						zval ***list, int list_count, HashTable **removed)
{
	HashTable 	*out_hash = NULL;	/* Output hashtable */
	int			 num_in,			/* Number of entries in the input hashtable */
				 pos,				/* Current position in the hashtable */
				 i;					/* Loop counter */
	Bucket		*p;					/* Pointer to hash bucket */
	zval		*entry;				/* Hash entry */
	
	/* If input hash doesn't exist, we have nothing to do */
	if (!in_hash)
		return NULL;
	
	/* Get number of entries in the input hash */
	num_in = zend_hash_num_elements(in_hash);
	
	/* Clamp the offset.. */
	if (offset > num_in)
		offset = num_in;
	else if (offset < 0 && (offset=num_in+offset) < 0)
		offset = 0;
	
	/* ..and the length */
	if (length < 0)
		length = num_in-offset+length;
	else if(offset+length > num_in)
		length = num_in-offset;

	/* Create and initialize output hash */
	out_hash = (HashTable *)emalloc(sizeof(HashTable));
	zend_hash_init(out_hash, 0, NULL, PVAL_PTR_DTOR, 0);
	
	/* Start at the beginning of the input hash and copy
	   entries to output hash until offset is reached */
	for (pos=0, p=in_hash->pListHead; pos<offset && p ; pos++, p=p->pListNext) {
		/* Get entry and increase reference count */
		entry = *((zval **)p->pData);
		entry->refcount++;
		
		/* Update output hash depending on key type */
		if (p->nKeyLength)
			zend_hash_update(out_hash, p->arKey, p->nKeyLength, &entry, sizeof(zval *), NULL);
		else
			zend_hash_next_index_insert(out_hash, &entry, sizeof(zval *), NULL);
	}
	
	/* If hash for removed entries exists, go until offset+length
	   and copy the entries to it */
	if (removed != NULL) {
		for( ; pos<offset+length && p; pos++, p=p->pListNext) {
			entry = *((zval **)p->pData);
			entry->refcount++;
			if (p->nKeyLength)
				zend_hash_update(*removed, p->arKey, p->nKeyLength, &entry, sizeof(zval *), NULL);
			else
				zend_hash_next_index_insert(*removed, &entry, sizeof(zval *), NULL);
		}
	} else /* otherwise just skip those entries */
		for( ; pos<offset+length && p; pos++, p=p->pListNext);
	
	/* If there are entries to insert.. */
	if (list != NULL) {
		/* ..for each one, create a new zval, copy entry into it
		   and copy it into the output hash */
		for (i=0; i<list_count; i++) {
			entry = *list[i];
			entry->refcount++;
			zend_hash_next_index_insert(out_hash, &entry, sizeof(zval *), NULL);
		}
	}
	
	/* Copy the remaining input hash entries to the output hash */
	for ( ; p ; p=p->pListNext) {
		entry = *((zval **)p->pData);
		entry->refcount++;
		if (p->nKeyLength)
			zend_hash_update(out_hash, p->arKey, p->nKeyLength, &entry, sizeof(zval *), NULL);
		else
			zend_hash_next_index_insert(out_hash, &entry, sizeof(zval *), NULL);
	}

	zend_hash_internal_pointer_reset(out_hash);
	return out_hash;
}
/* }}} */


/* {{{ proto int array_push(array stack, mixed var [, ...])
   Pushes elements onto the end of the array */
PHP_FUNCTION(array_push)
{
	zval	  ***args,		/* Function arguments array */
			    *stack,		/* Input array */
			    *new_var;	/* Variable to be pushed */
	int			 i,			/* Loop counter */
				 argc;		/* Number of function arguments */

	/* Get the argument count and check it */
	argc = ARG_COUNT(ht);
	if (argc < 2) {
		WRONG_PARAM_COUNT;
	}
	
	/* Allocate arguments array and get the arguments, checking for errors. */
	args = (zval ***)emalloc(argc * sizeof(zval **));
	if (getParametersArrayEx(argc, args) == FAILURE) {
		efree(args);
		WRONG_PARAM_COUNT;
	}

	/* Get first argument and check that it's an array */	
	stack = *args[0];
	if (stack->type != IS_ARRAY) {
		zend_error(E_WARNING, "First argument to array_push() needs to be an array");
		RETURN_FALSE;
	}

	/* For each subsequent argument, make it a reference, increase refcount,
	   and add it to the end of the array */
	for (i=1; i<argc; i++) {
		new_var = *args[i];
		new_var->refcount++;
	
		zend_hash_next_index_insert(stack->value.ht, &new_var, sizeof(zval *), NULL);
	}
	
	/* Clean up and return the number of values in the stack */
	efree(args);
	RETVAL_LONG(zend_hash_num_elements(stack->value.ht));
}
/* }}} */


/* {{{ void _phpi_pop(INTERNAL_FUNCTION_PARAMETERS, int which_end) */
static void _phpi_pop(INTERNAL_FUNCTION_PARAMETERS, int off_the_end)
{
	zval	   **stack,			/* Input stack */
			   **val;			/* Value to be popped */
	HashTable	*new_hash;		/* New stack */
	
	/* Get the arguments and do error-checking */
	if (ARG_COUNT(ht) != 1 || getParametersEx(1, &stack) == FAILURE) {
		WRONG_PARAM_COUNT;
	}
	
	if ((*stack)->type != IS_ARRAY) {
		zend_error(E_WARNING, "The argument needs to be an array");
		return;
	}

	if (zend_hash_num_elements((*stack)->value.ht) == 0) {
		return;
	}
		
	/* Get the first or last value and copy it into the return value */
	if (off_the_end)
		zend_hash_internal_pointer_end((*stack)->value.ht);
	else
		zend_hash_internal_pointer_reset((*stack)->value.ht);
	zend_hash_get_current_data((*stack)->value.ht, (void **)&val);
	*return_value = **val;
	zval_copy_ctor(return_value);
	INIT_PZVAL(return_value);
	
	/* Delete the first or last value */
	new_hash = _phpi_splice((*stack)->value.ht, (off_the_end) ? -1 : 0, 1, NULL, 0, NULL);
	zend_hash_destroy((*stack)->value.ht);
	efree((*stack)->value.ht);
	(*stack)->value.ht = new_hash;
}
/* }}} */


/* {{{ proto mixed array_pop(array stack)
   Pops an element off the end of the array */
PHP_FUNCTION(array_pop)
{
	_phpi_pop(INTERNAL_FUNCTION_PARAM_PASSTHRU, 1);
}
/* }}} */


/* {{{ proto mixed array_shift(array stack)
   Pops an element off the beginning of the array */
PHP_FUNCTION(array_shift)
{
	_phpi_pop(INTERNAL_FUNCTION_PARAM_PASSTHRU, 0);
}
/* }}} */


/* {{{ proto int array_unshift(array stack, mixed var [, ...])
   Pushes elements onto the beginning of the array */
PHP_FUNCTION(array_unshift)
{
	zval	  ***args,		/* Function arguments array */
				*stack;		/* Input stack */
	HashTable	*new_hash;	/* New hashtable for the stack */
	int			 argc;		/* Number of function arguments */
	

	/* Get the argument count and check it */	
	argc = ARG_COUNT(ht);
	if (argc < 2) {
		WRONG_PARAM_COUNT;
	}
	
	/* Allocate arguments array and get the arguments, checking for errors. */
	args = (zval ***)emalloc(argc * sizeof(zval **));
	if (getParametersArrayEx(argc, args) == FAILURE) {
		efree(args);
		WRONG_PARAM_COUNT;
	}
	
	/* Get first argument and check that it's an array */
	stack = *args[0];
	if (stack->type != IS_ARRAY) {
		zend_error(E_WARNING, "First argument to array_unshift() needs to be an array");
		RETURN_FALSE;
	}

	/* Use splice to insert the elements at the beginning.  Destroy old
	   hashtable and replace it with new one */
	new_hash = _phpi_splice(stack->value.ht, 0, 0, &args[1], argc-1, NULL);
	zend_hash_destroy(stack->value.ht);
	efree(stack->value.ht);
	stack->value.ht = new_hash;

	/* Clean up and return the number of elements in the stack */
	efree(args);
	RETVAL_LONG(zend_hash_num_elements(stack->value.ht));
}
/* }}} */


/* {{{ proto array array_splice(array input, int offset [, int length [, array replacement]])
   Removes the elements designated by offset and length and replace them with
   supplied array */
PHP_FUNCTION(array_splice)
{
	zval	  ***args,				/* Function arguments array */
				*array,				/* Input array */
			  ***repl = NULL;		/* Replacement elements */
	HashTable	*new_hash = NULL;	/* Output array's hash */
	Bucket		*p;					/* Bucket used for traversing hash */
	int			 argc,				/* Number of function arguments */
				 i,
				 offset,
				 length,
				 repl_num = 0;		/* Number of replacement elements */

	/* Get the argument count and check it */
	argc = ARG_COUNT(ht);
	if (argc < 2 || argc > 4) {
		WRONG_PARAM_COUNT;
	}
	
	/* Allocate arguments array and get the arguments, checking for errors. */
	args = (zval ***)emalloc(argc * sizeof(zval **));
	if (getParametersArrayEx(argc, args) == FAILURE) {
		efree(args);
		WRONG_PARAM_COUNT;
	}	

	/* Get first argument and check that it's an array */
	array = *args[0];
	if (array->type != IS_ARRAY) {
		zend_error(E_WARNING, "First argument to array_splice() should be an array");
		efree(args);
		return;
	}
	
	/* Get the next two arguments.  If length is omitted,
	   it's assumed to be until the end of the array */
	convert_to_long_ex(args[1]);
	offset = (*args[1])->value.lval;
	if (argc > 2) {
		convert_to_long_ex(args[2]);
		length = (*args[2])->value.lval;
	} else
		length = zend_hash_num_elements(array->value.ht);

	if (argc == 4) {
		/* Make sure the last argument, if passed, is an array */
		convert_to_array_ex(args[3]);
		
		/* Create the array of replacement elements */
		repl_num = zend_hash_num_elements((*args[3])->value.ht);
		repl = (zval ***)emalloc(repl_num * sizeof(zval **));
		for (p=(*args[3])->value.ht->pListHead, i=0; p; p=p->pListNext, i++) {
			repl[i] = ((zval **)p->pData);
		}
	}
	
	/* Initialize return value */
	array_init(return_value);
	
	/* Perform splice */
	new_hash = _phpi_splice(array->value.ht, offset, length,
							repl, repl_num,
							&return_value->value.ht);
	
	/* Replace input array's hashtable with the new one */
	zend_hash_destroy(array->value.ht);
	efree(array->value.ht);
	array->value.ht = new_hash;
	
	/* Clean up */
	if (argc == 4)
		efree(repl);
	efree(args);
}
/* }}} */


/* {{{ proto array array_slice(array input, int offset [, int length])
   Returns elements specified by offset and length */
PHP_FUNCTION(array_slice)
{
	zval	   **input,			/* Input array */
			   **offset,		/* Offset to get elements from */
			   **length,		/* How many elements to get */
			   **entry;			/* An array entry */
	int			 offset_val,	/* Value of the offset argument */
				 length_val,	/* Value of the length argument */
				 num_in,		/* Number of elements in the input array */
				 pos,			/* Current position in the array */
				 argc;			/* Number of function arguments */
				 
	char		*string_key;
	ulong		 num_key;
	

	/* Get the arguments and do error-checking */	
	argc = ARG_COUNT(ht);
	if (argc < 2 || argc > 3 || getParametersEx(argc, &input, &offset, &length)) {
		WRONG_PARAM_COUNT;
	}
	
	if ((*input)->type != IS_ARRAY) {
		zend_error(E_WARNING, "First argument to array_slice() should be an array");
		return;
	}
	
	/* Make sure offset and length are integers and assume
	   we want all entries from offset to the end if length
	   is not passed */
	convert_to_long_ex(offset);
	offset_val = (*offset)->value.lval;
	if (argc == 3) {
		convert_to_long_ex(length);
		length_val = (*length)->value.lval;
	} else
		length_val = zend_hash_num_elements((*input)->value.ht);
	
	/* Initialize returned array */
	array_init(return_value);
	
	/* Get number of entries in the input hash */
	num_in = zend_hash_num_elements((*input)->value.ht);
	
	/* Clamp the offset.. */
	if (offset_val > num_in)
		return;
	else if (offset_val < 0 && (offset_val=num_in+offset_val) < 0)
		offset_val = 0;
	
	/* ..and the length */
	if (length_val < 0)
		length_val = num_in-offset_val+length_val;
	else if(offset_val+length_val > num_in)
		length_val = num_in-offset_val;
	
	if (length_val == 0)
		return;
	
	/* Start at the beginning and go until we hit offset */
	pos = 0;
	zend_hash_internal_pointer_reset((*input)->value.ht);
	while(pos < offset_val &&
		  zend_hash_get_current_data((*input)->value.ht, (void **)&entry) == SUCCESS) {
		pos++;
		zend_hash_move_forward((*input)->value.ht);
	}
	
	/* Copy elements from input array to the one that's returned */
	while(pos < offset_val+length_val &&
		  zend_hash_get_current_data((*input)->value.ht, (void **)&entry) == SUCCESS) {
		
		(*entry)->refcount++;

		switch (zend_hash_get_current_key((*input)->value.ht, &string_key, &num_key)) {
			case HASH_KEY_IS_STRING:
				zend_hash_update(return_value->value.ht, string_key, strlen(string_key)+1,
								 entry, sizeof(zval *), NULL);
				efree(string_key);
				break;
	
			case HASH_KEY_IS_LONG:
				zend_hash_next_index_insert(return_value->value.ht,
											entry, sizeof(zval *), NULL);
				break;
		}
		pos++;
		zend_hash_move_forward((*input)->value.ht);
	}
}
/* }}} */


/* {{{ proto array array_merge(array arr1, array arr2 [, ...])
   Merges elements from passed arrays into one array */
PHP_FUNCTION(array_merge)
{
	zval	  ***args = NULL,
			   **entry;
	HashTable	*hash;
	int			 argc,
				 i;
	char		*string_key;
	ulong		 num_key;

	/* Get the argument count and check it */	
	argc = ARG_COUNT(ht);
	if (argc < 2) {
		WRONG_PARAM_COUNT;
	}
	
	/* Allocate arguments array and get the arguments, checking for errors. */
	args = (zval ***)emalloc(argc * sizeof(zval **));
	if (getParametersArrayEx(argc, args) == FAILURE) {
		efree(args);
		WRONG_PARAM_COUNT;
	}
	
	array_init(return_value);
	
	for (i=0; i<argc; i++) {
		if ((*args[i])->type != IS_ARRAY) {
			zend_error(E_WARNING, "Skipping argument #%d to array_merge(), since it's not an array", i+1);
			continue;
		}
		hash = (*args[i])->value.ht;
		
		zend_hash_internal_pointer_reset(hash);
		while(zend_hash_get_current_data(hash, (void **)&entry) == SUCCESS) {
			(*entry)->refcount++;
			
			switch (zend_hash_get_current_key(hash, &string_key, &num_key)) {
				case HASH_KEY_IS_STRING:
					zend_hash_update(return_value->value.ht, string_key, strlen(string_key)+1,
									 entry, sizeof(zval *), NULL);
					efree(string_key);
					break;

				case HASH_KEY_IS_LONG:
					zend_hash_next_index_insert(return_value->value.ht,
												entry, sizeof(zval *), NULL);
					break;
			}

			zend_hash_move_forward(hash);
		}
	}
	
	efree(args);
}
/* }}} */


/* {{{ proto array array_keys(array input [, mixed search_value])
   Return just the keys from the input array, optionally only
   for the specified search_value */
PHP_FUNCTION(array_keys)
{
	zval	   **input,			/* Input array */
			   **search_value,	/* Value to search for */
			   **entry,			/* An entry in the input array */
				 res,			/* Result of comparison */
				*new_val;		/* New value */
	int			 add_key;		/* Flag to indicate whether a key should be added */
	char		*string_key;	/* String key */
	ulong		 num_key;		/* Numeric key */

	search_value = NULL;
	
	/* Get arguments and do error-checking */
	if (ARG_COUNT(ht) < 1 || ARG_COUNT(ht) > 2 ||
		getParametersEx(ARG_COUNT(ht), &input, &search_value) == FAILURE) {
		WRONG_PARAM_COUNT;
	}
	
	if ((*input)->type != IS_ARRAY) {
		zend_error(E_WARNING, "First argument to array_keys() should be an array");
		return;
	}
	
	/* Initialize return array */
	array_init(return_value);
	add_key = 1;
	
	/* Go through input array and add keys to the return array */
	zend_hash_internal_pointer_reset((*input)->value.ht);
	while(zend_hash_get_current_data((*input)->value.ht, (void **)&entry) == SUCCESS) {
		if (search_value != NULL) {
     		is_equal_function(&res, *search_value, *entry);
			add_key = zval_is_true(&res);
		}
	
		if (add_key) {	
			MAKE_STD_ZVAL(new_val);

			switch (zend_hash_get_current_key((*input)->value.ht, &string_key, &num_key)) {
				case HASH_KEY_IS_STRING:
					new_val->type = IS_STRING;
					new_val->value.str.val = string_key;
					new_val->value.str.len = strlen(string_key);
					zend_hash_next_index_insert(return_value->value.ht, &new_val,
												sizeof(zval *), NULL);
					break;

				case HASH_KEY_IS_LONG:
					new_val->type = IS_LONG;
					new_val->value.lval = num_key;
					zend_hash_next_index_insert(return_value->value.ht, &new_val,
												sizeof(zval *), NULL);
					break;
			}
		}

		zend_hash_move_forward((*input)->value.ht);
	}
}
/* }}} */


/* {{{ proto array array_values(array input)
   Return just the values from the input array */
PHP_FUNCTION(array_values)
{
	zval	   **input,		/* Input array */
			   **entry;		/* An entry in the input array */
	
	/* Get arguments and do error-checking */
	if (ARG_COUNT(ht) != 1 || getParametersEx(ARG_COUNT(ht), &input) == FAILURE) {
		WRONG_PARAM_COUNT;
	}
	
	if ((*input)->type != IS_ARRAY) {
		zend_error(E_WARNING, "Argument to array_values() should be an array");
		return;
	}
	
	/* Initialize return array */
	array_init(return_value);

	/* Go through input array and add values to the return array */	
	zend_hash_internal_pointer_reset((*input)->value.ht);
	while(zend_hash_get_current_data((*input)->value.ht, (void **)&entry) == SUCCESS) {
		
		(*entry)->refcount++;
		zend_hash_next_index_insert(return_value->value.ht, entry,
											sizeof(zval *), NULL);

		zend_hash_move_forward((*input)->value.ht);
	}
}
/* }}} */

/* {{{ proto array array_count_values(array input)
   Return the value as key and the frequency of that value in <input> as value */
PHP_FUNCTION(array_count_values)
{
	zval	   **input,		/* Input array */
			   **entry;		/* An entry in the input array */
	zval       **tmp;
	HashTable   *myht;
	
	/* Get arguments and do error-checking */
	if (ARG_COUNT(ht) != 1 || getParametersEx(1, &input) == FAILURE) {
		WRONG_PARAM_COUNT;
	}
	
	if ((*input)->type != IS_ARRAY) {
		zend_error(E_WARNING, "Argument to array_count_values() should be an array");
		return;
	}
	
	/* Initialize return array */
	array_init(return_value);

	/* Go through input array and add values to the return array */	
	myht = (*input)->value.ht;
	zend_hash_internal_pointer_reset(myht);
	while (zend_hash_get_current_data(myht, (void **)&entry) == SUCCESS) {
		if ((*entry)->type == IS_LONG) {
			if (zend_hash_index_find(return_value->value.ht, 
									 (*entry)->value.lval, 
									 (void**)&tmp) == FAILURE) {
				zval *data;
				MAKE_STD_ZVAL(data);
				data->type = IS_LONG;
				data->value.lval = 1;
				zend_hash_index_update(return_value->value.ht,(*entry)->value.lval, &data, sizeof(data), NULL);
			} else {
				(*tmp)->value.lval++;
			}
		} else if ((*entry)->type == IS_STRING) {
			if (zend_hash_find(return_value->value.ht, 
							   (*entry)->value.str.val, 
							   (*entry)->value.str.len+1, 
							   (void**)&tmp) == FAILURE) {
				zval *data;
				MAKE_STD_ZVAL(data);
				data->type = IS_LONG;
				data->value.lval = 1;
				zend_hash_update(return_value->value.ht,(*entry)->value.str.val,(*entry)->value.str.len + 1, &data, sizeof(data), NULL);
			} else {
				(*tmp)->value.lval++;
			}
		} else {
			zend_error(E_WARNING, "Can only count STRING and INTEGER values!");
		}

		zend_hash_move_forward(myht);
	}
}
/* }}} */

/* {{{ proto array array_reverse(array input)
   Return input as a new array with the order of the entries reversed */
PHP_FUNCTION(array_reverse)
{
	zval	   **input,			/* Input array */
			   **entry;			/* An entry in the input array */
	char		*string_key;
	ulong		 num_key;
	
	/* Get arguments and do error-checking */
	if (ARG_COUNT(ht) != 1 || getParametersEx(1, &input) == FAILURE) {
		WRONG_PARAM_COUNT;
	}
	
	if ((*input)->type != IS_ARRAY) {
		zend_error(E_WARNING, "Argument to array_reverse() should be an array");
		return;
	}
	
	/* Initialize return array */
	array_init(return_value);
	
	zend_hash_internal_pointer_end((*input)->value.ht);
	while(zend_hash_get_current_data((*input)->value.ht, (void **)&entry) == SUCCESS) {
		(*entry)->refcount++;
		
		switch (zend_hash_get_current_key((*input)->value.ht, &string_key, &num_key)) {
			case HASH_KEY_IS_STRING:
				zend_hash_update(return_value->value.ht, string_key, strlen(string_key)+1,
								 entry, sizeof(zval *), NULL);
				efree(string_key);
				break;

			case HASH_KEY_IS_LONG:
				zend_hash_next_index_insert(return_value->value.ht,
											entry, sizeof(zval *), NULL);
				break;
		}
		
		zend_hash_move_backwards((*input)->value.ht);
	}
}
/* }}} */

/*
 * Local variables:
 * tab-width: 4
 * c-basic-offset: 4
 * End:
 */