- Initialized callable_name if present

diff --git a/Zend/zend_API.c b/Zend/zend_API.c
index 106f4934406b985b945536daa49a11f635d4f072..71f3a504ffd27a53a2472a05e3ccf01483299432 100644 (file)
--- a/Zend/zend_API.c
+++ b/Zend/zend_API.c
@@ -2118,6 +2118,9 @@ ZEND_API zend_bool zend_is_callable_ex(zval *callable, uint check_flags, char **
        zend_function *fptr_local;
        zval **zobj_ptr_local;
 
+       if (callable_name) {
+               *callable_name = NULL;
+       }
        if (callable_name_len == NULL) {
                callable_name_len = &callable_name_len_local;
        }