PHP 返回JSON

aret.php

方法一　　

<?php
header("content-type:application/json");
$json='{"name":"pual","age":15,"class":100}';
echo $json;
?>

 方法二

$v=array("name"=>"pual" , "age"=>"32" , "class"=>"100");
$json=json_encode($v);
header("content-type:application/json");
echo $json;