PHP实现支持GET,POST,Multipart/form-data的HTTP请求类

本文实例讲述了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

?>

demo示例程序如下：

<?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>';
print_r($result);
echo '</pre>';

?>

完整实例代码可以点击此处本站下载。

希望本文所述对大家的PHP程序设计有所帮助。