$url = "https://southzone.sakura.ne.jp/posted.php";

$data = array(

'vids' => array(0=> "1" , 1=> "2"),

'tids' => array(0=> "10" , 1=> "20")

);

$content = http_build_query($data , '' , '&');

$options = array('http' => array(

'method' => 'POST',

'content' => $content

));

file_get_contents($url , false, stream_context_create($options));