PHP code to check proxy IP validity

This article mainly introduces in detail the code for checking the validity of the proxy IP in PHP. It has certain practical value. Interested friends can refer to it.

The example of this article is to share with you the code for checking the proxy. IP validity php code, stability, such as error rate and query time

/**
 +-----------------------------------------------------------------------------
 * 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;
}

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