Fix wrong codes #55817

diff --git a/ext/mbstring/mbstring.c b/ext/mbstring/mbstring.c
index 62c10a8f1f1c7809e34c1f096f9be47df30742a5..b544f1ac98391d202d390dad862d849c006a90de 100644 (file)
--- a/ext/mbstring/mbstring.c
+++ b/ext/mbstring/mbstring.c
@@ -3190,7 +3190,7 @@ PHP_FUNCTION(mb_detect_encoding)
        /* make encoding list */
        list = NULL;
        size = 0;
-       if (ZEND_NUM_ARGS() >= 2 && Z_STRVAL_P(encoding_list)) {
+       if (ZEND_NUM_ARGS() >= 2) {
                switch (Z_TYPE_P(encoding_list)) {
                case IS_ARRAY:
                        if (FAILURE == php_mb_parse_encoding_array(encoding_list, &list, &size, 0 TSRMLS_CC)) {