php处理get请求，返回json

1. <?php    
2.     $searchUrl = 'http://203.156.244.227:80/cgi-bin/get_score.fcgi?content=';    
3.     if(!empty($_GET['content']))    
4.     {    
5.         $searchUrl .= $_GET['content'];    
6.     }    
7.     echo file_get_contents($searchUrl);    
8. ?>