这篇文章主要介绍了php发送post请求的三种方法，分别使用curl、file_get_content、fsocket来实现post提交数据，需要的朋友可以参考下。

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方法一：file_get_content版本

/** * 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.jb51.net', $post_data);

方法二：Socket版本

<?php/** * Socket版本 * 使用方法： * $post_string = "app=socket&version=beta"; * request_by_socket(&#39;chajia8.com&#39;, &#39;/restServer.php&#39;, $post_string); */function request_by_socket($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;}?>

方法三：Curl版本

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<?php/** * Curl版本 * 使用方法： * $post_string = "app=request&version=beta"; * request_by_curl(&#39;http://www.jb51.net/restServer.php&#39;, $post_string); */function request_by_curl($remote_server, $post_string) {  $ch = curl_init();  curl_setopt($ch, CURLOPT_URL, $remote_server);  curl_setopt($ch, CURLOPT_POSTFIELDS, &#39;mypost=&#39; . $post_string);  curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);  curl_setopt($ch, CURLOPT_USERAGENT, "jb51.net&#39;s CURL Example beta");  $data = curl_exec($ch);  curl_close($ch);    return $data;}?>