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php curl通过连接获取标题

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Jun 07, 2016 am 11:34 AM

php curl通过连接获取标题
/****/ //Gary xu //1122557724@qq.com /****/ namespace Xuyaoxiang; class Snoopy { public $pattern_array=array( 'title'=>'/<title>(\s*.*)/i', 'description'=>'/<meta>/', 'charset'=>'/charset=\"?([\w-]+)\"?/i', ); public $user_agent='Mozilla/5.0 (Windows NT 10.0; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/49.0.2623.110 Safari/537.36'; //模拟浏览器头部数据 public $target_code="utf-8"; //目标编码 public $url; public $data; public $pattern_key; function __construct($url) { $this->url=$url; } public function set_pattern($key,$val) { $this->pattern_array[$key]=$val; } function get_content($pattern_key) { $this->pattern_key=$pattern_key; if($this->pattern_key==''){return false;} $this->curl_get_data(); if($this->data==false){return false;} $charset=$this->get_charset(); $this->check_charset($charset); $content=$this->get_key_content(); return trim($content[1]); } function curl_get_data() { $curl=curl_init(); // 设置你需要抓取的URL curl_setopt($curl, CURLOPT_URL, $this->url); // 设置header curl_setopt($curl, CURLOPT_HEADER, 0); // 设置cURL 参数，要求结果保存到字符串中还是输出到屏幕上。 curl_setopt($curl, CURLOPT_RETURNTRANSFER, 1); curl_setopt($curl, CURLOPT_USERAGENT, $this->user_agent); // 运行cURL，请求网页 $this->data = curl_exec($curl); curl_close($curl); } function check_charset($page_charset) { if($page_charset!=$this->target_code) { $this->data=mb_convert_encoding($this->data,$this->target_code,$page_charset); } } function get_key_content() { preg_match($this->pattern_array[$this->pattern_key],$this->data,$content); return $content; } function get_charset() { preg_match($this->pattern_array['charset'],$this->data,$reg_charset); return $page_charset=strtolower($reg_charset[1]); } } header("Content-type:text/html;charset=utf-8"); $snoopy=new snoopy("http://www.qq.com"); $title=$snoopy->get_content('title'); print_r($title);</title>

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