PHP查询QQ电脑在线状态

<?php
if ($_GET['qq']) {
$qq = $_GET['qq'];
$data = file_get_contents("http://webpresence.qq.com/getonline?type=1&$qq:");
$data || $data = strlen(file_get_contents("http://wpa.qq.com/pa?p=2:$qq:45"));
if(!$data) { return 0; } 
 
switch((string)$data){
  case 'online[0]=0;': exit('{"code":"0","state":"电脑离线"}');return;
  case 'online[0]=1;': exit('{"code":"1","state":"电脑在线"}') ;return;
 
} 
 
} 
return 3;
?>