Fix the default value handling of imagegif()

diff --git a/ext/gd/gd.c b/ext/gd/gd.c
index 2cb33503fed81e6e62123813ae624685655c36e7..b015143ad80612298c5b290202ace681c228dfce 100644 (file)
--- a/ext/gd/gd.c
+++ b/ext/gd/gd.c
@@ -4162,7 +4162,7 @@ static void _php_image_output_ctx(INTERNAL_FUNCTION_PARAMETERS, int image_type,
        zval *to_zval = NULL;
 
        if (image_type == PHP_GDIMG_TYPE_GIF) {
-               if (zend_parse_parameters(ZEND_NUM_ARGS(), "O|z", &imgind, gd_image_ce, &to_zval) == FAILURE) {
+               if (zend_parse_parameters(ZEND_NUM_ARGS(), "O|z!", &imgind, gd_image_ce, &to_zval) == FAILURE) {
                        RETURN_THROWS();
                }
        } else if (image_type == PHP_GDIMG_TYPE_PNG) {