php使用curl伪造浏览器访问操作示例

本文实例讲述了php使用curl伪造浏览器访问操作。分享给大家供大家参考，具体如下：
原理
服务器主要通过User-Agent识别客户端是何种设备
User-Agent是Http协议中的一部分，属于头域的组成部分。基本格式为： 浏览器标识 (操作系统标识; 加密等级标识; 浏览器语言) 渲染引擎标识 版本信息。

具体方法如下

/**
 * curl获取数据
 * @param $url
 * @return mixed
 */
function get_url($url)
{
  $ifpost = 0;
  $datafields = '';
  $cookiefile = '';
  $v = false;
  //构造随机ip
  $ip_long = array(
    array('607649792', '608174079'), //36.56.0.0-36.63.255.255
    array('1038614528', '1039007743'), //61.232.0.0-61.237.255.255
    array('1783627776', '1784676351'), //106.80.0.0-106.95.255.255
    array('2035023872', '2035154943'), //121.76.0.0-121.77.255.255
    array('2078801920', '2079064063'), //123.232.0.0-123.235.255.255
    array('-1950089216', '-1948778497'), //139.196.0.0-139.215.255.255
    array('-1425539072', '-1425014785'), //171.8.0.0-171.15.255.255
    array('-1236271104', '-1235419137'), //182.80.0.0-182.92.255.255
    array('-770113536', '-768606209'), //210.25.0.0-210.47.255.255
    array('-569376768', '-564133889'), //222.16.0.0-222.95.255.255
  );
  $rand_key = mt_rand(0, 9);
  $ip= long2ip(mt_rand($ip_long[$rand_key][0], $ip_long[$rand_key][1]));
//模拟http请求header头
  $header = array("Connection: Keep-Alive","Accept: text/html, application/xhtml+xml, */*", "Pragma: no-cache", "Accept-Language: zh-Hans-CN,zh-Hans;q=0.8,en-US;q=0.5,en;q=0.3","User-Agent: Mozilla/5.0 (compatible; MSIE 10.0; Windows NT 6.2; WOW64; Trident/6.0)",'CLIENT-IP:'.$ip,'X-FORWARDED-FOR:'.$ip);
  $ch = curl_init();
  curl_setopt($ch, CURLOPT_URL, $url);
  curl_setopt($ch, CURLOPT_HEADER, $v);
  curl_setopt($ch, CURLOPT_HTTPHEADER, $header);
  $ifpost && curl_setopt($ch, CURLOPT_POST, $ifpost);
  $ifpost && curl_setopt($ch, CURLOPT_POSTFIELDS, $datafields);
  curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
  curl_setopt($ch, CURLOPT_FOLLOWLOCATION, true);
  $cookiefile && curl_setopt($ch, CURLOPT_COOKIEFILE, $cookiefile);
  $cookiefile && curl_setopt($ch, CURLOPT_COOKIEJAR, $cookiefile);
  curl_setopt($ch,CURLOPT_TIMEOUT,60); //允许执行的最长秒数
  curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false);
  curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, false);
  $ok = curl_exec($ch);
  curl_close($ch);
  unset($ch);
  return $ok;
}

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