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浅谈PHP中JSON数据操作_PHP

May 30, 2016 am 08:45 AM
json php

JSON,全称是JavaScript Object Notation。它是基于JavaScript编程语言ECMA-262 3rd Edition-December 1999标准的一种轻量级的数据交换格式,主要用于跟服务器进行交换数据。跟XML相类似,它独立语言,在跨平台数据传输上有很大的优势

新建文件json.php,先做encode操作:

 //encode
 //生成JSON格式数据
 $arr = array(1,2,3,4,5,6,7,8,9,'Hello','PHP');
 echo json_encode($arr);//json_encode:把一个对象转换成json格式数据

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得到的结果是[1,2,3,4,5,6,7,8,9,"Hello","PHP"]

再来做decode操作:

 //decode 解码
 $jsonStr = '{"h":"Hello","w":"World","0":[3,2,1]}';
 $obj = json_decode($jsonStr);
 echo $obj->h;//使用成员访问的方式就可以得到结果

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知道简单的使用方法后,可以尝试着抓API数据,比如天气...

以上所述就是本文的全部内容了,希望大家能够喜欢。

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