@ - 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

1 files changed, 38 insertions, 0 deletions

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