$postData = array(

 'action' => 'req',

 'type' => 'post'

);

$postData = http_build_query($postData);

$fp = fsockopen('localhost', 80, $errno, $errorStr, 5);

$reqData = "POST /reg.php HTTP/1.1\r\n";

$reqData .= "HOST:localhost\r\n";

$reqData .= "Content-type:application/x-www-form-urlencoded\r\n";

$reqData .= "Content-length:" . strlen($postData) . "\r\n\r\n";

fwrite($fp, $reqData);

while(!feof($fp)) {

echo fgets($fp, 1024) . '.Hello World\r\n';

}

fclose($fp);

exit;

服务端echo粗来，but报错500