Add sort flags parameter to array_unique().

ext/standard/array.c

@@ -2895,7 +2895,7 @@ PHP_FUNCTION(array_change_key_case)
 }
 /* }}} */
 
-/* {{{ proto array array_unique(array input) U
+/* {{{ proto array array_unique(array input [, int sort_flags]) U
    Removes duplicate values from array */
 PHP_FUNCTION(array_unique)
 {
@@ -2907,11 +2907,14 @@ PHP_FUNCTION(array_unique)
 	};
 	struct bucketindex *arTmp, *cmpdata, *lastkept;
 	unsigned int i;
+	long sort_type = PHP_SORT_REGULAR;
 
-	if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "a", &array) == FAILURE) {
+	if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "a|l", &array, &sort_type) == FAILURE) {
 		return;
 	}
 
+	php_set_compare_func(sort_type TSRMLS_CC);
+
 	array_init_size(return_value, zend_hash_num_elements(Z_ARRVAL_P(array)));
 	zend_hash_copy(Z_ARRVAL_P(return_value), Z_ARRVAL_P(array), (copy_ctor_func_t) zval_add_ref, (void *)&tmp, sizeof(zval*));
 
@@ -2930,7 +2933,6 @@ PHP_FUNCTION(array_unique)
 		arTmp[i].i = i;
 	}
 	arTmp[i].b = NULL;
-	php_set_compare_func(PHP_SORT_STRING TSRMLS_CC);
 	zend_qsort((void *) arTmp, i, sizeof(struct bucketindex), php_array_data_compare TSRMLS_CC);
 
 	/* go through the sorted array and delete duplicates from the copy */