php 使用multipart/form-data的HTTP请求类

小鱼儿 2022-08-07 08:47 138阅读 0赞

这篇文章主要介绍了PHP实现支持GET,POST,Multipart/form-data的HTTP请求类,包括了连接与处理方式及相关的技巧,需要的朋友可以参考下

PHP实现支持GET,POST,Multipart/form-data的HTTP请求类及其应用，分享给大家供大家参考。具体如下：

HttpRequest.class.php类文件如下：

<?php 
    /** HttpRequest class, HTTP请求类，支持GET,POST,Multipart/form-data 
    *  Date:  2013-09-25 
    *  Author: fdipzone 
    *  Ver:  1.0 
    * 
    *  Func: 
    *  public setConfig   设置连接参数 
    *  public setFormdata  设置表单数据 
    *  public setFiledata  设置文件数据 
    *  public send     发送数据 
    *  private connect    创建连接 
    *  private disconnect  断开连接 
    *  private sendGet    get 方式,处理发送的数据,不会处理文件数据 
    *  private sendPost   post 方式,处理发送的数据 
    *  private sendMultipart multipart 方式,处理发送的数据,发送文件推荐使用此方式 
    */
      
    class HttpRequest{ // class start 
      
      private $_ip = ''; 
      private $_host = ''; 
      private $_url = ''; 
      private $_port = ''; 
      private $_errno = ''; 
      private $_errstr = ''; 
      private $_timeout = 15; 
      private $_fp = null; 
        
      private $_formdata = array(); 
      private $_filedata = array(); 
      
      
      // 设置连接参数 
      public function setConfig($config){ 
        $this->_ip = isset($config['ip'])? $config['ip'] : ''; 
        $this->_host = isset($config['host'])? $config['host'] : ''; 
        $this->_url = isset($config['url'])? $config['url'] : ''; 
        $this->_port = isset($config['port'])? $config['port'] : ''; 
        $this->_errno = isset($config['errno'])? $config['errno'] : ''; 
        $this->_errstr = isset($config['errstr'])? $config['errstr'] : ''; 
        $this->_timeout = isset($confg['timeout'])? $confg['timeout'] : 15; 
      
        // 如没有设置ip，则用host代替 
        if($this->_ip==''){ 
          $this->_ip = $this->_host; 
        } 
      } 
      
      // 设置表单数据 
      public function setFormData($formdata=array()){ 
        $this->_formdata = $formdata; 
      } 
      
      // 设置文件数据 
      public function setFileData($filedata=array()){ 
        $this->_filedata = $filedata; 
      } 
      
      // 发送数据 
      public function send($type='get'){ 
      
        $type = strtolower($type); 
      
        // 检查发送类型 
        if(!in_array($type, array('get','post','multipart'))){ 
          return false; 
        } 
      
        // 检查连接 
        if($this->connect()){ 
      
          switch($type){ 
            case 'get': 
              $out = $this->sendGet(); 
              break; 
      
            case 'post': 
              $out = $this->sendPost(); 
              break; 
      
            case 'multipart': 
              $out = $this->sendMultipart(); 
              break; 
          } 
      
          // 空数据 
          if(!$out){ 
            return false; 
          } 
      
          // 发送数据 
          fputs($this->_fp, $out); 
      
          // 读取返回数据 
          $response = ''; 
      
          while($row = fread($this->_fp, 4096)){ 
            $response .= $row; 
          } 
      
          // 断开连接 
          $this->disconnect(); 
      
          $pos = strpos($response, "\r\n\r\n"); 
          $response = substr($response, $pos+4); 
      
          return $response; 
      
        }else{ 
          return false; 
        } 
      } 
      
      // 创建连接 
      private function connect(){ 
        $this->_fp = fsockopen($this->_ip, $this->_port, $this->_errno, $this->_errstr, $this->_timeout); 
        if(!$this->_fp){ 
          return false; 
        } 
        return true; 
      } 
      
      // 断开连接 
      private function disconnect(){ 
        if($this->_fp!=null){ 
          fclose($this->_fp); 
          $this->_fp = null; 
        } 
      } 
      
      // get 方式,处理发送的数据,不会处理文件数据 
      private function sendGet(){ 
      
        // 检查是否空数据 
        if(!$this->_formdata){ 
          return false; 
        } 
      
        // 处理url 
        $url = $this->_url.'?'.http_build_query($this->_formdata); 
          
        $out = "GET ".$url." http/1.1\r\n"; 
        $out .= "host: ".$this->_host."\r\n"; 
        $out .= "connection: close\r\n\r\n"; 
      
        return $out; 
      } 
      
      // post 方式,处理发送的数据 
      private function sendPost(){ 
      
        // 检查是否空数据 
        if(!$this->_formdata && !$this->_filedata){ 
          return false; 
        } 
      
        // form data 
        $data = $this->_formdata? $this->_formdata : array(); 
      
        // file data 
        if($this->_filedata){ 
          foreach($this->_filedata as $filedata){ 
            if(file_exists($filedata['path'])){ 
              $data[$filedata['name']] = file_get_contents($filedata['path']); 
            } 
          } 
        } 
      
        if(!$data){ 
          return false; 
        } 
      
        $data = http_build_query($data); 
      
        $out = "POST ".$this->_url." http/1.1\r\n"; 
        $out .= "host: ".$this->_host."\r\n"; 
        $out .= "content-type: application/x-www-form-urlencoded\r\n"; 
        $out .= "content-length: ".strlen($data)."\r\n"; 
        $out .= "connection: close\r\n\r\n"; 
        $out .= $data; 
      
        return $out; 
      } 
      
      // multipart 方式,处理发送的数据,发送文件推荐使用此方式 
      private function sendMultipart(){ 
      
        // 检查是否空数据 
        if(!$this->_formdata && !$this->_filedata){ 
          return false; 
        } 
      
        // 设置分割标识 
        srand((double)microtime()*1000000); 
        $boundary = '---------------------------'.substr(md5(rand(0,32000)),0,10); 
      
        $data = '--'.$boundary."\r\n"; 
      
        // form data 
        $formdata = ''; 
      
        foreach($this->_formdata as $key=>$val){ 
          $formdata .= "content-disposition: form-data; name=\"".$key."\"\r\n"; 
          $formdata .= "content-type: text/plain\r\n\r\n"; 
          if(is_array($val)){ 
            $formdata .= json_encode($val)."\r\n"; // 数组使用json encode后方便处理 
          }else{ 
            $formdata .= rawurlencode($val)."\r\n"; 
          } 
          $formdata .= '--'.$boundary."\r\n"; 
        } 
      
        // file data 
        $filedata = ''; 
      
        foreach($this->_filedata as $val){ 
          if(file_exists($val['path'])){ 
            $filedata .= "content-disposition: form-data; name=\"".$val['name']."\"; filename=\"".$val['filename']."\"\r\n"; 
            $filedata .= "content-type: ".mime_content_type($val['path'])."\r\n\r\n"; 
            $filedata .= implode('', file($val['path']))."\r\n"; 
            $filedata .= '--'.$boundary."\r\n"; 
          } 
        } 
      
        if(!$formdata && !$filedata){ 
          return false; 
        } 
      
        $data .= $formdata.$filedata."--\r\n\r\n"; 
      
        $out = "POST ".$this->_url." http/1.1\r\n"; 
        $out .= "host: ".$this->_host."\r\n"; 
        $out .= "content-type: multipart/form-data; boundary=".$boundary."\r\n"; 
        $out .= "content-length: ".strlen($data)."\r\n"; 
        $out .= "connection: close\r\n\r\n"; 
        $out .= $data; 
      
        return $out; 
      } 
    } // class end 
      
    ?>