From: David Croft <david@php.net>
Date: Mon, 30 Apr 2001 04:06:09 +0000 (+0000)
Subject: @ - Added key_exists() to check if a given key or index exists in an
X-Git-Tag: php-4.0.6RC1~255
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=34f03f2c5cce5b668bfaa1ec04ef8d2f1e9c33a1;p=php

@ - Added key_exists() to check if a given key or index exists in an
@ array or object (David Croft)
Added key_exists() to check if a given key or index exists in an array or object
---

diff --git a/ext/standard/array.c b/ext/standard/array.c
index 739dff9029..5c17c12f3e 100644
--- a/ext/standard/array.c
+++ b/ext/standard/array.c
@@ -3075,6 +3075,44 @@ PHP_FUNCTION(array_map)
 /* }}} */
 
 
+/* {{{ proto bool key_exists(mixed key, array search)
+   Checks if the given key or index exists in the array */
+PHP_FUNCTION(key_exists)
+{
+	zval **key,					/* key to check for */
+		 **array;				/* array to check in */
+      	
+	if (ZEND_NUM_ARGS() != 2 ||
+		zend_get_parameters_ex(ZEND_NUM_ARGS(), &key, &array) == FAILURE) {
+		WRONG_PARAM_COUNT;
+	}
+	
+	if (Z_TYPE_PP(array) != IS_ARRAY && Z_TYPE_PP(array) != IS_OBJECT) {
+		php_error(E_WARNING, "Wrong datatype for second argument in call to %s", get_active_function_name());
+		RETURN_FALSE;
+	}
+
+	switch (Z_TYPE_PP(key)) {
+		case IS_STRING:
+			if (zend_hash_exists(HASH_OF(*array), Z_STRVAL_PP(key), Z_STRLEN_PP(key)+1)) {
+				RETURN_TRUE;
+			}
+			RETURN_FALSE;
+
+		case IS_LONG:
+			if (zend_hash_index_exists(HASH_OF(*array), Z_LVAL_PP(key))) {
+				RETURN_TRUE;
+			}
+			RETURN_FALSE;
+
+		default:
+			php_error(E_WARNING, "Wrong datatype for first argument in call to %s", get_active_function_name());
+			RETURN_FALSE;
+	}
+			
+}
+/* }}} */
+
 /*
  * Local variables:
  * tab-width: 4
diff --git a/ext/standard/basic_functions.c b/ext/standard/basic_functions.c
index 61e7f82869..7e779a7f75 100644
--- a/ext/standard/basic_functions.c
+++ b/ext/standard/basic_functions.c
@@ -588,6 +588,7 @@ function_entry basic_functions[] = {
 	PHP_FE(array_sum,							    NULL)
 	PHP_FE(array_filter,						    NULL)
 	PHP_FE(array_map,							    NULL)
+	PHP_FE(key_exists,								NULL)
 
 	/* aliases from array.c */
 	PHP_FALIAS(pos,				current,			first_arg_force_ref)
diff --git a/ext/standard/php_array.h b/ext/standard/php_array.h
index fb00e2d08a..04ebb02167 100644
--- a/ext/standard/php_array.h
+++ b/ext/standard/php_array.h
@@ -77,6 +77,7 @@ PHP_FUNCTION(array_diff);
 PHP_FUNCTION(array_sum);
 PHP_FUNCTION(array_filter);
 PHP_FUNCTION(array_map);
+PHP_FUNCTION(key_exists);
 
 HashTable* php_splice(HashTable *, int, int, zval ***, int, HashTable **);
 PHPAPI void php_array_merge(HashTable *dest, HashTable *src, int recursive);