php代码检查代理ip的有效性

本文实例为大家分享了检查代理ip有效性php代码，稳定性，如错误率和查询用时

    /**
     +-----------------------------------------------------------------------------
     * 检查代理ip信息有效性
     +-----------------------------------------------------------------------------
     * @param string $proxy_ip [117.95.100.126:8998]
     * @param int $times 执行检查次数
     * @return array
     * @author elinx <654753115@qq.com> 2016-07-29
     +-----------------------------------------------------------------------------
     */
    function check_proxy_ip_info($proxy_ip=false, $times=10) {
      $header = array(
        // "GET / HTTP/1.1",
        // "HOST: www.baidu.com",
        "accept: application/json",
        "accept-encoding: gzip, deflate",
        "accept-language: en-US,en;q=0.8",
        "content-type: application/json",
        "user-agent: Mozilla/5.0 (Windows NT 10.0; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/51.0.2704.106 Safari/537.36",
      );
      $url = 'http://www.baidu.com/';
      $result['succeed_times'] = 0; //成功次数
      $result['defeat_times'] = 0; //失败次数
      $result['total_spen']  = 0; //总用时
      for ($i=0; $i < $times; $i++) { 
        $s = microtime();
        $curl = curl_init();
        curl_setopt($curl, CURLOPT_URL, $url); //设置传输的url
        curl_setopt($curl, CURLOPT_HTTPHEADER, $header); //发送http报头
        curl_setopt($curl, CURLOPT_RETURNTRANSFER, 1);
        curl_setopt($curl, CURLOPT_ENCODING, 'gzip,deflate'); // 解码压缩文件
        curl_setopt($curl, CURLOPT_SSL_VERIFYPEER, false); //不验证证SSL书
        curl_setopt($curl, CURLOPT_SSL_VERIFYHOST, false); //不验证SSL证书

        if (@$proxy_ip != false) { //使用代理ip
          curl_setopt($curl, CURLOPT_HTTPHEADER, array (
            'Client_Ip: '.mt_rand(0, 255).'.'.mt_rand(0, 255).'.'.mt_rand(0, 255).'.'.mt_rand(0, 255),
          ));
          curl_setopt($curl, CURLOPT_HTTPHEADER, array (
            'X-Forwarded-For: '.mt_rand(0, 255).'.'.mt_rand(0, 255).'.'.mt_rand(0, 255).'.'.mt_rand(0, 255),
          ));
          curl_setopt($curl, CURLOPT_PROXYTYPE, CURLPROXY_HTTP);
          curl_setopt($curl, CURLOPT_PROXY, $proxy_ip);
        }

        curl_setopt($curl, CURLOPT_COOKIEFILE, dirname(__FILE__).'/cookie.txt');
        curl_setopt($curl, CURLOPT_COOKIEJAR, dirname(__FILE__).'/cookie.txt');
        curl_setopt($curl, CURLOPT_TIMEOUT, 30); // 设置超时限制防止死循环
        // $response_header = curl_getinfo($curl); // 获取返回response报头
        $content = curl_exec($curl);
        if (strstr($content, '百度一下，你就知道')) {
          $result['list'][$i]['status'] = 1;
          $result['succeed_times'] += 1;
        } else {
          $result['list'][$i]['status'] = 0;
          $result['defeat_times'] += 1;
        }
        $e = microtime();
        $result['total_spen']     += abs($e-$s);
        $result['list'][$i]['spen']  = abs($e-$s);
        $result['list'][$i]['content'] = json_encode($content, true);
        // $result['list'][$i]['response_header'] = $response_header;
      }
      $result['precent'] = (number_format($result['succeed_times']/$times, 4)*100).'%';
      $result['average_spen'] = number_format($result['total_spen']/$times, 4);
      return $result;
    }

以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持脚本之家。