菜鸟求教，如何返回JSONObject给客户端
本人在要实现android客户端登陆，然后服务端返回一个JSONObject给客户端的java程序，求教 如何返回JSONObject
比如sn=>123,fn=>234
回复讨论(解决方案)
json_encode
$rt_info = array("rand"=>$rd,"sessionId"=>session_id());
echo json_encode($rt_info);
这样写可以么，为什么客户端程序调试log显示会把整个PHP文字内容都作为返回值打印出来了，应该怎么返回
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