How to generate and obtain JSON files with PHP

This article mainly introduces the method of generating and obtaining JSON files in PHP, involving PHP's operation skills for json format data and files. Friends in need can refer to the following

The examples in this article describe the generation and acquisition of PHP JSON file method. Share it with everyone for your reference, the details are as follows:

First define an array, then traverse the data table, put the corresponding data into the array, and finally convert the array through json_encode()

## The function of the #json_encode() function is to convert numerical values ​​into JSON data storage format.

putjson.php:

<?php
// 生成一个PHP数组
$data = array();
$data[0] = array(&#39;1&#39;,&#39;吴者然&#39;,&#39;onestopweb.cn&#39;);
$data[1] = array(&#39;2&#39;,&#39;何开&#39;,&#39;iteye.com&#39;);
// 把PHP数组转成JSON字符串
$json_string = json_encode($data);
// 写入文件
file_put_contents(&#39;test.json&#39;, $json_string);
?>

If there is a JSON file with the same name, it will be overwritten, if not, it will be created.

The generated or overwritten JSON is as follows:

Copy code The code is as follows:

[["1","\u811A\u672C \u4E4B\u5BB6","www.php.cn"],["2","\u7F16\u7A0B\u5F00\u53D1","php.cn"]]

Then, put the JSON file in The data is read into PHP variables.

getjson.php：

<?php
// 从文件中读取数据到PHP变量
$json_string = file_get_contents(&#39;test.json&#39;);
// 把JSON字符串转成PHP数组
$data = json_decode($json_string, true);
// 显示出来看看
var_dump($data);
echo &#39;<br><br>&#39;;
print_r($data);
echo &#39;<br><br>&#39;;
echo &#39;编号：&#39;.$data[0][0].&#39; 姓名：&#39;.$data[0][1].&#39; 网址：&#39;.$data[0][2];
echo &#39;<br>&#39;;
echo &#39;编号：&#39;.$data[1][0].&#39; 姓名：&#39;.$data[1][1].&#39; 网址：&#39;.$data[1][2];
?>

Rendering:

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