由于经常使用,找了一个curl类封装

作者: admin 分类: php 发布时间: 2017-04-24 07:30
<?php
/**
  * @author askwei 
**/

class CURL   
{  
    private $ch;  
    private $url = "http://www.baidu.com";
    private $flag_if_have_run;   //标记exec是否已经运行
    private $set_time_out = 20;  //设置curl超时时间
    private $cookie_file = "";  //cookie_file路径
    private $cookie_mode = 0;    //cookie保存模式 0不使用 1客户端、2服务器文件
    private $show_header = 0;    //是否输出返回头信息
    private $set_useragent = ""; //模拟用户使用的浏览器,默认为模拟
    
    //构造函数  
    public function __construct($url = ""){  
        $this->ch = curl_init();  
        $this->url = $url ? $url : $this->url;
        //$this->set_useragent = $_SERVER['HTTP_USER_AGENT']; // 模拟用户使用的浏览器   
        $this->set_useragent ="Mozilla/5.0 (iPhone; CPU iPhone OS 6_1_4 like Mac OS X) AppleWebKit/536.26 (KHTML, like Gecko) Version/7.0 Mobile/10B350 Safari/9537.53";
        // $this->set_useragent = "Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/36.0.1985.143 Safari/537.36";
        //$this->cookie_file=dirname(__FILE__)."/cookie_".md5(basename(__FILE__)).".txt";    //初始化cookie文件路径 
        //$this->cookie_file= SAE_TMP_PATH.TmpFS;
        $this->cookie_file = "saekv://cookie_2014.txt";
    }  
    //关闭curl
    public function close(){  
        curl_close($this->ch);  
    }  
    //析构函数  
    public function __destruct(){  
        $this->close();  
    }  
    
   //设置超时   
    public function set_time_out($timeout=20){  
        if(intval($timeout) != 0)       
            $this->set_time_out = $timeout;
        return $this;
    }  
    //设置来源页面  
    public function set_referer($referer = ""){  
        if (!empty($referer))  
            curl_setopt($this->ch, CURLOPT_REFERER , $referer);  
        return $this;  
    }
    //设置cookie存放模式 1客户端、2服务器文件  
    public function set_cookie_mode($mode = ""){  
        $this->cookie_mode = $mode;
        return $this;
    }
    //载入cookie  
    public function load_cookie(){  
       
        if($this->cookie_mode == 1 ) {
            if(isset($_COOKIE['curl'])){
                curl_setopt($this->ch,CURLOPT_COOKIE,$_COOKIE['curl']);
            }else{
                $this->exec();
                curl_setopt($this->ch,CURLOPT_COOKIE,$this->cookie_file);
            }
            
        }
        if($this->cookie_mode == 2 ) {
         
            curl_setopt($this->ch, CURLOPT_COOKIEFILE , $this->cookie_file);
            
        }
        if($this->cookie_mode == 3 ) {
            $kv = new SaeKV();
            $ret = $kv->init();
            $ret = $kv->get('curl_cookie');
            if($ret)
             curl_setopt($this->ch,CURLOPT_COOKIE, $ret);
         
     }
     return $this;  
 }  
 
    //设置保存cookie方式 $cookie_val 模式1为变量 模式2为文件路径
 public function save_cookie($cookie_val = "") {  
        //保存在客户端
    if($this->cookie_mode == 1 && $cookie_val){
     setcookie('curl',$cookie_val); 
 }
        //保存服务器端
 if($this->cookie_mode == 2){ 
    if(!empty($cookie_val))  
     $this->cookie_file =  $cookie_val;
 curl_setopt($this->ch, CURLOPT_COOKIEJAR , $this->cookie_file);  
}
        //保存在sae
if($this->cookie_mode == 3 && $cookie_val){
   $kv = new SaeKV();
   $ret = $kv->init();
   $ret = $kv->get('curl_cookie');
   if($ret){
    $ret = $kv->set('curl_cookie', $cookie_val );
    
}else{
   $ret = $kv->add('curl_cookie', $cookie_val);
   
}
}


return $this;  

}  
    //post参数 (array) $post 
public function post ($post = ""){  
    if($post && is_array($post)){
        curl_setopt($this->ch, CURLOPT_POST , 1);  
        curl_setopt($this->ch, CURLOPT_POSTFIELDS , $post );  
    }
    return $this;  
}  
    //设置代理 ,例如'68.119.83.81:27977'  
public function set_proxy($proxy = ""){
    if($proxy){ 
        curl_setopt($this->ch, CURLOPT_PROXYTYPE, CURLPROXY_SOCKS5);  
        curl_setopt($this->ch, CURLOPT_PROXY,$proxy); 
    }           
    return $this;  
}  
    //设置伪造ip  
public function set_ip($ip=""){  
    if(!empty($ip))  
        curl_setopt($this->ch, CURLOPT_HTTPHEADER, array("X-FORWARDED-FOR:$ip", "CLIENT-IP:$ip"));  
    return $ip;  
} 
     //设置是否显示返回头信息
public function show_header($show=0){
    $this->show_header = 0;  
    if($show) 
        $this->show_header = 1; 
    return $this;  
}

     //设置请求头信息
public function set_useragent($str=""){  
    if($str)  
        $this->set_useragent = $str;  
    return $this;  
}   

    //执行  
public function exec ($url = ""){  
    if(!$url) $url = $this->url;
        curl_setopt($this->ch, CURLOPT_URL, $url); // 要访问的地址
        curl_setopt($this->ch, CURLOPT_SSL_VERIFYPEER, 0); // 对认证证书来源的检查   
        curl_setopt($this->ch, CURLOPT_RETURNTRANSFER , 1 );    //获取的信息以文件流的形式返回     
        curl_setopt($this->ch, CURLOPT_SSL_VERIFYHOST, 1); // 从证书中检查SSL加密算法是否存在 
        curl_setopt($this->ch, CURLOPT_USERAGENT, $this->set_useragent); // 模拟用户使用的浏览器      
        curl_setopt($this->ch, CURLOPT_FOLLOWLOCATION, 1); // 使用自动跳转      
        curl_setopt($this->ch, CURLOPT_AUTOREFERER, 1); // 自动设置Referer 
        curl_setopt($this->ch, CURLOPT_TIMEOUT, $this->set_time_out);  //超时设置
        curl_setopt($this->ch, CURLOPT_HEADER, $this->show_header); // 显示返回的Header区域内容
        curl_setopt($this->ch, CURLOPT_NOBODY, 0);//不返回response body内容 
        
        $res = curl_exec($this->ch);
        $this->flag_if_have_run = true;
        if (curl_errno($this->ch)) {      
            //echo 'Errno'.curl_error($this->ch);  
            return false;           
        } 
        if($this->show_header == 1){ //数组形式返回头信息和body信息 
            list($header, $body) = explode("\r\n\r\n", $res);
            $arr['header'] = $header;
            $arr['body'] = $body;
            if($this->cookie_mode == 1 || $this->cookie_mode == 3){  
                preg_match_all("/set\-cookie:([^\r\n]*)/i", $header, $matches);
                //print_r($matches);
                if($matches && isset($matches[1]) ){
                    $val = implode(';',array_unique(explode(';',implode(';',$matches[1])))); //去重处理
                    if($val)
                      $this->save_cookie($val); //设置客户端保存cookie
              }
          }
          if($arr) return $arr;
      }
      
      return $res;  
  }  
  
  
    //返回  curl_getinfo信息
  public function get_info(){  
    if($this->flag_if_have_run == true )  
        return curl_getinfo($this->ch);  
    else  
        throw new Exception("<h1>需先运行( 执行exec ),再获取信息</h1>");  
}  

}  
?>

 

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