'/
     /',	'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);?>