PHP教程：PHP socket 模拟POST 请求实例代码

<?php
/**
 * SOCKET扩展函数
 * @copyright (c) 2013
 * @author Qiufeng <fengdingbo@gmail.com>
 * @link 
 * @version 1.0
 */
 
/**
 * Post Request
 *
 * @param string $url 
 * @param array $data
 * @param string $referer
 * @return array
 */
if ( ! function_exists('socket_post'))
{
 function socket_post($url, $data, $referer='')
 {
 if( ! is_array($data))
 {
 return;
 }
 
 $data = http_build_query($data);
 $url = parse_url($url);
 
 if ( ! isset($url['scheme']) || $url['scheme'] != 'http')
 {
 die('Error: Only HTTP request are supported !');
 }
 
 $host = $url['host'];
 $path = isset($url['path']) ? $url['path'] : '/';
 
 // open a socket connection on port 80 - timeout: 30 sec
 $fp = fsockopen($host, 80, $errno, $errstr, 30);
 
 if ($fp)
 {
 // send the request headers:
 $length = strlen($data);
 $POST = <<<HEADER
POST {$path} HTTP/1.1
Accept: text/plain, text/html
Referer: {$referer}
Accept-Language: zh-CN,zh;q=0.8
Content-Type: application/x-www-form-urlencodem 
Cookie: token=value; pub_cookietime=2592000; pub_sauth1=value; pub_sauth2=value
User-Agent: Mozilla/5.0 (X11; Linux i686) AppleWebKit/537.17 (KHTML, like Gecko) Chrome/24.0.1312.56 Safari/537.17
Host: {$host}
Content-Length: {$length}
Pragma: no-cache
Cache-Control: no-cache
Connection: closern
{$data}
HEADER;
 fwrite($fp, $POST);
 $result = '';
 while(!feof($fp))
 {
 // receive the results of the request
 $result .= fread($fp, 512);
 }
 }
 else
 {
 return array(
  'status' => 'error',
  'error' => "$errstr ($errno)"
  );
 }
 
 // close the socket connection:
 fclose($fp);
 
 // split the result header from the content
 $result = explode("rnrn", $result, 2);
 
 // return as structured array:
 return array(
 'status' => 'ok',
 'header' => isset($result[0]) ? $result[0] : '',
 'content' => isset($result[1]) ? $result[1] : ''
 );
 }
}
 
print_r(socket_post('/', array('name='=>'qiufeng','password'=>md5('www.jb51.net'))));
/* e.g: socket_post('', array('name='=>'qiufeng','password'=>md5('jb51.net'))); */
/* End of file socket_helper.php */

<?php 
 
  $remote_server = "jb51.net"; 
 
  $boundary = "---------------------".substr(md5(rand(0,32000)),0,10); 
   
  // Build the header 
  $header = "POST /api.php?action=twupload HTTP/1.0rn"; 
  $header .= "Host: {$remote_server}rn"; 
  $header .= "Content-type: multipart/form-data, boundary=$boundaryrn"; 
 
  /* 
  // attach post vars 
  foreach($_POST AS $index => $value){ 
   $data .="--$boundaryrn"; 
   $data .= "Content-Disposition: form-data; name="".$index.""rn"; 
   $data .= "rn".$value."rn"; 
   $data .="--$boundaryrn"; 
  } 
  */
  $file_name = "aaa.jpg"; 
  $content_type = "image/jpg"; 
 
  $data = ''; 
  // and attach the file 
  $data .= "--$boundaryrn"; 
 
  $content_file = file_get_contents('aaa.jpg'); 
  $data .="Content-Disposition: form-data; name="userfile"; filename="$file_name"rn"; 
  $data .= "Content-Type: $content_typernrn"; 
  $data .= "".$content_file."rn"; 
  $data .="--$boundary--rn"; 
 
  $header .= "Content-length: " . strlen($data) . "rnrn"; 
     // Open the connection 
 
 
  $fp = fsockopen($remote_server, 80); 
  // then just 
  fputs($fp, $header.$data); 
  // reader 
 
 while (!feof($fp)) { 
  echo fgets($fp, 128); 
 } 
 
fclose($fp);