Implemented FR #54514 (Get php binary path during script execution).

NEWS

@@ -6,6 +6,8 @@ PHP                                                                        NEWS
     (php at mickweiss dot com)
   . Fixed bug #60240 (invalid read/writes when unserializing specially crafted
     strings). (Mike)
+  . Implement FR #54514 (Get php binary path during script execution). 
+    (Laruence)
 
 - CLI SAPI:
   . Implement FR #60390 (Missing $_SERVER['SERVER_PORT']). (Pierre)

main/main.c

@@ -255,6 +255,57 @@ static void php_disable_classes(TSRMLS_D)
 }
 /* }}} */
 
+/* {{{ php_binary_init
+ */
+static void php_binary_init(TSRMLS_D) 
+{
+	char *binary_location;
+#ifdef PHP_WIN32
+	binary_location = (char *)malloc(MAXPATHLEN);
+	if (GetModuleFileName(0, binary_location, MAXPATHLEN) == 0) {
+		free(binary_location);
+		PG(php_binary) = NULL;
+	}
+#else
+	if (sapi_module.executable_location) {
+		binary_location = (char *)malloc(MAXPATHLEN);
+		if (!strchr(sapi_module.executable_location, '/')) {
+			char *envpath, *path;
+			int found = 0;
+
+			if ((envpath = getenv("PATH")) != NULL) {
+				char *search_dir, search_path[MAXPATHLEN];
+				char *last = NULL;
+
+				path = estrdup(envpath);
+				search_dir = php_strtok_r(path, ":", &last);
+
+				while (search_dir) {
+					snprintf(search_path, MAXPATHLEN, "%s/%s", search_dir, sapi_module.executable_location);
+					if (VCWD_REALPATH(search_path, binary_location) && !VCWD_ACCESS(binary_location, X_OK)) {
+						found = 1;
+						break;
+					}
+					search_dir = php_strtok_r(NULL, ":", &last);
+				}
+				efree(path);
+			}
+			if (!found) {
+				free(binary_location);
+				binary_location = NULL;
+			}
+		} else if (!VCWD_REALPATH(sapi_module.executable_location, binary_location) || VCWD_ACCESS(binary_location, X_OK)) {
+			free(binary_location);
+			binary_location = NULL;
+		}
+	} else {
+		binary_location = NULL;
+	}
+#endif
+	PG(php_binary) = binary_location;
+}
+/* }}} */
+
 /* {{{ PHP_INI_MH
  */
 static PHP_INI_MH(OnUpdateTimeout)
@@ -1819,6 +1870,9 @@ static void core_globals_dtor(php_core_globals *core_globals TSRMLS_DC)
 	if (core_globals->disable_classes) {
 		free(core_globals->disable_classes);
 	}
+	if (core_globals->php_binary) {
+		free(core_globals->php_binary);
+	}
 
 	php_shutdown_ticks(TSRMLS_C);
 }
@@ -2069,6 +2123,13 @@ int php_module_startup(sapi_module_struct *sf, zend_module_entry *additional_mod
 	REGISTER_MAIN_LONG_CONSTANT("PHP_WINDOWS_NT_WORKSTATION", VER_NT_WORKSTATION, CONST_PERSISTENT | CONST_CS);
 #endif
 
+	php_binary_init(TSRMLS_C);
+	if (PG(php_binary)) {
+		REGISTER_MAIN_STRINGL_CONSTANT("PHP_BINARY", PG(php_binary), strlen(PG(php_binary)), CONST_PERSISTENT | CONST_CS);
+	} else {
+		REGISTER_MAIN_STRINGL_CONSTANT("PHP_BINARY", "", 0, CONST_PERSISTENT | CONST_CS);
+	}
+
 	php_output_register_constants(TSRMLS_C);
 	php_rfc1867_register_constants(TSRMLS_C);
 

main/php_globals.h

@@ -84,6 +84,7 @@ struct _php_core_globals {
 	char *include_path;
 	char *open_basedir;
 	char *extension_dir;
+	char *php_binary;
 
 	char *upload_tmp_dir;
 	long upload_max_filesize;

main/php_ini.c

@@ -393,7 +393,6 @@ int php_init_config(TSRMLS_D)
 		int search_path_size;
 		char *default_location;
 		char *env_location;
-		char *binary_location;
 		static const char paths_separator[] = { ZEND_PATHS_SEPARATOR, 0 };
 #ifdef PHP_WIN32
 		char *reg_location;
@@ -472,51 +471,11 @@ int php_init_config(TSRMLS_D)
 			strlcat(php_ini_search_path, ".", search_path_size);
 		}
 
-		/* Add binary directory */
-#ifdef PHP_WIN32
-		binary_location = (char *) emalloc(MAXPATHLEN);
-		if (GetModuleFileName(0, binary_location, MAXPATHLEN) == 0) {
-			efree(binary_location);
-			binary_location = NULL;
-		}
-#else
-		if (sapi_module.executable_location) {
-			binary_location = (char *)emalloc(MAXPATHLEN);
-			if (!strchr(sapi_module.executable_location, '/')) {
-				char *envpath, *path;
-				int found = 0;
-
-				if ((envpath = getenv("PATH")) != NULL) {
-					char *search_dir, search_path[MAXPATHLEN];
-					char *last = NULL;
-
-					path = estrdup(envpath);
-					search_dir = php_strtok_r(path, ":", &last);
-
-					while (search_dir) {
-						snprintf(search_path, MAXPATHLEN, "%s/%s", search_dir, sapi_module.executable_location);
-						if (VCWD_REALPATH(search_path, binary_location) && !VCWD_ACCESS(binary_location, X_OK)) {
-							found = 1;
-							break;
-						}
-						search_dir = php_strtok_r(NULL, ":", &last);
-					}
-					efree(path);
-				}
-				if (!found) {
-					efree(binary_location);
-					binary_location = NULL;
-				}
-			} else if (!VCWD_REALPATH(sapi_module.executable_location, binary_location) || VCWD_ACCESS(binary_location, X_OK)) {
-				efree(binary_location);
-				binary_location = NULL;
-			}
-		} else {
-			binary_location = NULL;
-		}
-#endif
-		if (binary_location) {
-			char *separator_location = strrchr(binary_location, DEFAULT_SLASH);
+		if (PG(php_binary)) {
+			char *separator_location, *binary_location;
+
+			binary_location = estrdup(PG(php_binary));
+			separator_location = strrchr(binary_location, DEFAULT_SLASH);
 
 			if (separator_location && separator_location != binary_location) {
 				*(separator_location) = 0;

tests/basic/bug54514.phpt

@@ -0,0 +1,9 @@
+--TEST--
+Req #54514 (Get php binary path during script execution)
+--FILE--
+<?php
+if(getenv('TEST_PHP_EXECUTABLE') === PHP_BINARY) {
+	echo "done";
+}
+--EXPECT--
+done