returned by reference

1. Mô tả lỗi: A PHP Error was encountered Severity: Notice Message: Only variable references should be returned by reference Filename: core/Common.php Line Number: 257 2. Cách khắc phục: Mở file “/system/core/Common.php” sau đó tìm đến dòng 257 thấy nội dung sau: return $_config[0] =& $config; Thay thế thành: $_config[0] …