Fixed reference arguments handling

diff --git a/ext/standard/dns.c b/ext/standard/dns.c
index cba6e3c0971419104af857266b147cf3d8e89016..d0209fed5e5a8a39d5d7923e50223fa779356278 100644 (file)
--- a/ext/standard/dns.c
+++ b/ext/standard/dns.c
@@ -945,10 +945,12 @@ PHP_FUNCTION(dns_get_mx)
                return;
        }
 
+       mx_list = Z_REFVAL_P(mx_list);
        zval_dtor(mx_list);
        array_init(mx_list);
 
        if (weight_list) {
+               weight_list = Z_REFVAL_P(weight_list);
                zval_dtor(weight_list);
                array_init(weight_list);
        }