php 請求url獲取狀態碼

function get_http_code($url) {  
        $curl = curl_init();  
        curl_setopt($curl, CURLOPT_URL, $url); //設置URL  
        curl_setopt($curl, CURLOPT_HEADER, 1); //獲取Header  
        curl_setopt($curl, CURLOPT_NOBODY, true); //Body就不要了吧，我們只是需要Head  
        curl_setopt($curl, CURLOPT_RETURNTRANSFER, 1); //數據存到成字符串吧，別給我直接輸出到屏幕了  
        $data = curl_exec($curl); //開始執行啦～  
        $return = curl_getinfo($curl, CURLINFO_HTTP_CODE); //我知道HTTPSTAT碼哦～  
          
        curl_close($curl); //用完記得關掉他  
          
        return $return;  
    }