PHP implements HTTP request classes that support GET, POST, Multipart/form-data, multipartform-data

This article describes the example of PHP implementing the HTTP request class and its application that supports GET, POST, Multipart/form-data, and shares it with everyone for your reference. The details are as follows:

HttpRequest.class.php class file is as follows:

<&#63;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'])&#63; $config['ip'] : ''; 
    $this->_host = isset($config['host'])&#63; $config['host'] : ''; 
    $this->_url = isset($config['url'])&#63; $config['url'] : ''; 
    $this->_port = isset($config['port'])&#63; $config['port'] : ''; 
    $this->_errno = isset($config['errno'])&#63; $config['errno'] : ''; 
    $this->_errstr = isset($config['errstr'])&#63; $config['errstr'] : ''; 
    $this->_timeout = isset($confg['timeout'])&#63; $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 = $this->_url.'&#63;'.http_build_query($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&#63; $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 
 
&#63;>

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The demo sample program is as follows:

<&#63;php 
require('HttpRequest.class.php'); 
 
$config = array( 
      'ip' => 'demo.fdipzone.com', // 如空则用host代替 
      'host' => 'demo.fdipzone.com', 
      'port' => 80, 
      'errno' => '', 
      'errstr' => '', 
      'timeout' => 30, 
      'url' => '/getapi.php', 
      //'url' => '/postapi.php', 
      //'url' => '/multipart.php' 
); 
 
$formdata = array( 
  'name' => 'fdipzone', 
  'gender' => 'man' 
); 
 
$filedata = array( 
  array( 
    'name' => 'photo', 
    'filename' => 'photo.jpg', 
    'path' => 'photo.jpg' 
  ) 
); 
 
$obj = new HttpRequest(); 
$obj->setConfig($config); 
$obj->setFormData($formdata); 
$obj->setFileData($filedata); 
$result = $obj->send('get'); 
//$result = $obj->send('post'); 
//$result = $obj->send('multipart'); 
 
echo '<pre class="brush:php;toolbar:false">'; 
print_r($result); 
echo '

'; ?>

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The complete example code can be downloaded from this website by clicking here.

I hope this article will be helpful to everyone’s PHP programming design.

【Urgent】For the file upload POST value transfer problem in PHP, I am not sure whether it is an enctype="multipart/form-data" attribute problem or a version problem

For controls whose file upload type is file, you can only use $_FILES to obtain them in the background. For other control types, you can use $_POST to obtain them. You only need to use the value obtained by $_FILES for your processing.

js simulates POST submission of a form of enctype="multipart/form-data" type

Use it only if you need to upload files
xmlHttp.setRequestHeader("Content-Type","application/x-www-form-urlencoded;");
Changed to
xmlHttp.setRequestHeader( "Content-Type","multipart/form-data;");

As for sending binary data, you can figure it out yourself.
--------------------------------7db8c30150364 This is actually regular
, which is a beginning segment and an ending segment, 7db8c30150364 Just use a string of non-repeating characters to identify the data. Content-Disposition: form-data; name="polls[]" What data is used to represent and what is the file name.

In fact, this is how to use it when uploading files in socket sending. If you have time, study how to handle POST files in HTTP.