php自定义类fsocket模拟post或get请求的方法

本文实例讲述了php自定义类fsocket模拟post或get请求的方法。分享给大家供大家参考。具体如下：

zsocket.class.php文件如下：

    <?php
    class ZSocket {
     /*
      * Init 
     */
     private function _fsockopen($host, $port, &$errno, &$errstr, $timeout){
      $ip = @gethostbyname($host);
      $s = @socket_create(AF_INET, SOCK_STREAM, 0);
      if(socket_set_nonblock($s)){
       $r = @socket_connect($s, $ip, $port);
       if ($r || socket_last_error() == EINPROGRESS) {
        $errno = EINPROGRESS;
        return $s;
       }
      }
      $errno = socket_last_error($s);
      $errstr = socket_strerror($errno);
      socket_close($s);
      return false;
     }
     /*
      * 设置Cookie
     */
     private function _setCookie($cookie){
      $_cookies = explode("; ",$cookie);
      $_tmp = explode("=",$_cookies[0]);
      setcookie($_tmp[0], $_tmp[1]);
      return $_cookies;
     }
     /*
      * 获取返回数据header内容
     */
     private function _getDataHeader(&$fp,&$reHeader,&$cookies){
      $maxlen = 0;
      while(!feof($fp)){
       $line = fgets($fp,1024);
       if(substr($line, 0, 12) == 'Set-Cookie: '){ $cookies[] = $this->_setCookie(substr($line, 12)); }
       $reHeader .= $line;
       if(substr($line, 0, 16) == 'Content-Length: '){
        $maxlen = intval(substr($line, 16, -2)); 
       }
       if($line == "\r\n" || $line == "") break;
      }
      return $maxlen;
     }
     /*
      * 获取返回数据正文内容
     */
     private function _getDataBody(&$fp,$maxlen){
      $reData = "";
      while(!feof($fp)){
       $line = fgets($fp,$maxlen+1);
       $reData .= $line;
       if(strlen($line) < $maxlen) $maxlen = $maxlen - strlen($line);
       else break;
      }
      return $reData;
     }
     /*
      * 设置并返回要发送的header内容
     */
     public function get_HeaderInfo($host,$type='GET',$file='/',$params=array(),$head=array(),$cookies=array()){
      $_params = $_cookies = '';
      if(is_array($params)){
       foreach($params as $key=>$value){ 
        $_params .= "&".$key."=".urlencode($value); 
       }
       $_params = (strlen($_params) > 1) ? substr($_params,1) : '';
      }else if(is_string($params)){
       $_params = urlencode($params);
      }
      foreach($cookies as $key=>$value){
       $_cookies .= "; ".$key."=".urlencode($value); 
      }
      $_cookies = (strlen($_cookies) > 2) ? substr($_cookies,2) : '';
      $file .= ($type == 'GET') ? ($_params == '' ? '' : '?'.$_params) : '';
      $header = $type." ".$file." HTTP/1.1\r\n";
      $header .= "Host: ".$host."\r\n";
      //$header .= "Referer: ".get_ip()."\r\n";
      //$header .= "X-Forwarded-For: ".get_ip()."\r\n";
      $header .= ($type == 'GET') ? '' : "Content-Type: application/x-www-form-urlencoded\r\n";
      if(is_array($head) && $head != array()){
       foreach($head as $k=>$v){
        $header .= $k.": ".$v."\r\n";
       }
      }
      $header .= "Content-Length: ".strlen($_params)."\r\n";
      if($_cookies != '') $header .= "Cookie: ".$_cookies."\r\n";
      /*
      foreach($_SERVER as $name => $value){
       if(substr($name, 0, 5) == 'HTTP_' && $name != 'HTTP_HOST'){
        $header .= str_replace(' ', '-', ucwords(strtolower(str_replace('_', ' ', substr($name, 5))))).":".$value."\r\n";
       }
      }
      */
      $header .= "Connection: Close\r\n\r\n";
      $header .= $_params."\r\n";
      return $header;
     }
     /*
      * 发送,并返回结果 Array
     */
     public function get_SendData($host,$port=80,$header=''){
      if(function_exists('fsockopen')){
       $fp = fsockopen($host,$port,$errno,$errstr,10);
      }else if(function_exists('pfsockopen')){
       $fp = pfsockopen($host,$port,$errno,$errstr,10);
      }else if(function_exists('stream_socket_client')){
       $fp = stream_socket_client($host.':'.$port,$errno,$errstr,10);
      }else{
       $fp = $this->_fsockopen($host,$port,$errno,$errstr,10);
      }
      $fp = fsockopen($host,$port,$errno,$errstr,10);
      if(!$fp) return array('header'=>'','data'=>$errstr."--->".$errno,'cookie'=>'');
      $reHeader = $reData = "";
      $cookies = array();
      fputs($fp,$header);
      $maxlen = $this->_getDataHeader($fp,$reHeader,$cookies);
      $reData = $this->_getDataBody($fp,$maxlen);
      fclose($fp);
      return array('header'=>$reHeader,'data'=>$reData,'cookie'=>$cookies);
     }
    }

demo代码如下：

    $host = 'www.jb51.net';
    $port = '80';
    $type = 'POST';
    $file = '/';
    $params = '';
    //include_once('include/zsocket.class.php'); //include
    $zsk = new ZSocket();
    $header = $zsk->get_HeaderInfo($host,$type,$file,$params);
    $data = $zsk->get_SendData($host,$port,$header);
    /*
    echo "<!--\r\n";
    print_r($header);
    print_r($data);
    echo "-->\r\n";
    */
    var_dump($header);
    var_dump($data);

希望本文所述对大家的php程序设计有所帮助。