/** 

 * 发送post请求 

 * @param string $url 请求地址 

 * @param array $post_data post键值对数据 

 * @return string 

 */  

function send_post($url, $post_data) {  

  

  $postdata = http_build_query($post_data);  

  $options = array(  

    'http' => array(  

      'method' => 'POST',  

      'header' => 'Content-type:application/x-www-form-urlencoded',  

      'content' => $postdata,  

      'timeout' => 15 * 60 // 超时时间（单位:s）  

    )  

  );  

  $context = stream_context_create($options);  

  $result = file_get_contents($url, false, $context);  

  

  return $result;  

}  

  

//使用方法  

$post_data = array(  

  'username' => 'stclair2201',  

  'password' => 'handan'  

);  

send_post('http://www.qianyunlai.com', $post_data);  

  

  

  

  

<?php  

/** 

 * Socket版本 

 * 使用方法： 

 * $post_string = "app=socket&version=beta"; 

 * request_by_socket('chajia8.com', '/restServer.php', $post_string); 

 */  

function request_by_socket($remote_server,$remote_path,$post_string,$port = 80,$timeout = 30) {  

  $socket = fsockopen($remote_server, $port, $errno, $errstr, $timeout);  

  if (!$socket) die("$errstr($errno)");  

  fwrite($socket, "POST $remote_path HTTP/1.0");  

  fwrite($socket, "User-Agent: Socket Example");  

  fwrite($socket, "HOST: $remote_server");  

  fwrite($socket, "Content-type: application/x-www-form-urlencoded");  

  fwrite($socket, "Content-length: " . （strlen($post_string) + 8） . "");  

  fwrite($socket, "Accept:*/*");  

  fwrite($socket, "");  

  fwrite($socket, "mypost=$post_string");  

  fwrite($socket, "");  

  $header = "";  

  while ($str = trim(fgets($socket, 4096))) {  

    $header .= $str;  

  }  

  

  $data = "";  

  while (!feof($socket)) {  

    $data .= fgets($socket, 4096);  

  }  

  

  return $data;  

}  

?>  

  

<?php  

/**  

 * Curl版本  

 * 使用方法：  

 * $post_string = "app=request&version=beta";  

 * request_by_curl('http://www.qianyunlai.com/restServer.php', $post_string);  

 */  

function request_by_curl($remote_server, $post_string) {  

  $ch = curl_init();  

  curl_setopt($ch, CURLOPT_URL, $remote_server);  

  curl_setopt($ch, CURLOPT_POSTFIELDS, 'mypost=' . $post_string);  

  curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);  

  curl_setopt($ch, CURLOPT_USERAGENT, "qianyunlai.com's CURL Example beta");  

  $data = curl_exec($ch);  

  curl_close($ch);  

  

  return $data;  

}  

?>