关于 thinkPHP Deprecated: preg_replace(): The /e modifier is deprecated, use preg_replace_callback

 Deprecated: preg_replace(): The /e modifier is deprecated, use preg_replace_callback

关于thinkPHP rpc调用在高版本php环境下 出现的报错问题 修改为这样既可

 //$joinStr = @preg_replace("/__([A-Z_-]+)__/esU",C("DB_PREFIX").".strtolower('$1')",$joinStr);
		$joinStr = preg_replace_callback("/__([A-Z_-]+)__/",
                    function ($matches) {
                        return '_' . strtolower($matches[0]);
                      },$joinStr);