PHP는 배열을 json 형식으로 변환합니다.

<?php
/**PHP把数组转换为JSON字符串**/
$arr = [10,&#39;Tom&#39;,true, &#39;2015-10-15&#39;];
//echo $arr;
echo json_encode($arr);//编码为JSON字符串
$arr = [&#39;eid&#39;=>10,&#39;ename&#39;=>&#39;Tom&#39;,&#39;isMarried&#39;=>true, &#39;birthday&#39;=>&#39;2015-10-15&#39;];
//echo $arr;
echo json_encode($arr);//编码为JSON字符串
//结论：索引数组会被json_encode转换为JSON数组，关联数组会被json_encode转换为JSON对象
 ?>

[10,"Tom",true,"2015-10-15"]
{"eid":10,"ename":"Tom","isMarried":true,"birthday":"2015-10-15"}