php处理restful请求的路由类分享(2)

// 正则匹配检查，并提取出参数
        private function checkUrl($method, $str, $pattern) {
            //echo "check $str with $pattern <br>";
            $ma = array();
            $pattern = ltrim(rtrim($pattern, "https://www.jb51.net/"));
            $pattern = "https://www.jb51.net/".str_replace("https://www.jb51.net/", "\/", $pattern)."\/?$/";
            $pattern = str_replace(":s", "([^\/]+)", $pattern);
            //echo "pattern $pattern<br>";
            //$str = "/\".$str."$/";
            if (preg_match($pattern, $str, $ma) > 0) {
                return $ma;
            }
            return null;
        }
    }
?>