PHP socket programming to get content with post method

When you need to get content with POST method in PHP internal code, you need to get the desired result through alternate socket programming as below.

Actually what I wanted is emailing through alternate server located in different domain, because the current server has some limitation.

The following code is implemented at caller server.

<?php
// caller page : kmail.php
// programmed by Super Coder / Chunun Kang (kurapa@kurapa.com)
function kmail( $recipient, $subject, $body)
{
  $host = "foo.com";
  $uri = "/api/kmail_api.php";

  // acutally security code is removed on below code.
  // you can add it by yourself.
  $reqbody = "s=" . urlencode($subject)
           . "&b=" . urlencode($body)
           . "&f=" . urlencode('SAMSUNGDForum')
           . "&h=" . urlencode($headers)
           . "&r=" . urlencode($recipient);

  $contentlength = strlen($reqbody);
  $reqheader = "POST $uri HTTP/1.0xdxa".
  "Host: $hostxdxa". "User-Agent: Mozalaxdxa".
  "Content-Type: application/x-www-form-urlencodedxdxa".
  "Content-Length: $contentlengthxdxaxdxa".
  "$reqbodyxdxa";
  $socket = fsockopen($host, 80, $errno, $errstr);
  if (!$socket)
  {
    $result["errno"] = $errno;
    $result["errstr"] = $errstr;
    return $result;
  }
  fputs($socket, $reqheader);
  while (!feof($socket))
  {
    $result[] = fgets($socket, 4096);
  }
  fclose($socket);
  return $result;
}

In addition you need to add following callee PHP page on your callee server.

<?php
    // callee page : /api/kmail.php
    // programmed by Super Coder / Chunun Kang (kurapa@kurapa.com)

    $title = '=?utf-8?b?'.base64_encode($s).'?=';
    $recipient = $r;

    if (strlen($h)<1)
    {
      if (strlen($f)>0)
      {
        $h = "From: $f <no-reply@foo.com> ";
      }
      else
      {
        $h = "From: NO-REPLY <no-reply@foo.com> ";
      }
      $h .= "X-Sender: no-reply@foo.com ";
      $h .= "X-Mailer: Mozala PHP ".phpversion()." ";
    }
    
    mail($recipient , $title, $b, $h);
?>

Finally what you need to do is including above caller page to call kmail function.

include "./kmail.php";
kmail( "foo@foo.com", "howdy?", "test message from Chunun Kang (kurapa@kurapa.com");