Detailed explanation of the steps to read, write and modify json files in php

This time I will bring you a detailed explanation of the steps for reading, writing and modifying json files in PHP. What are the precautions for reading, writing and modifying JSON files in PHP? The following is a practical case, let's take a look.

The example is as follows:

// 追加写入用户名下文件
$code="001";//动态数据
    $json_string = file_get_contents("text.json");// 从文件中读取数据到PHP变量
    $data = json_decode($json_string,true);// 把JSON字符串转成PHP数组
    $data[$code]=array("a"=>"as","b"=>"bs","c"=>"cs");
    $json_strings = json_encode($data);
    file_put_contents("text.json",$json_strings);//写入
//修改
 $json_string = file_get_contents("text.json");// 从文件中读取数据到PHP变量
    $data = json_decode($json_string,true);// 把JSON字符串转成PHP数组
    $data["001"]["a"]="aas";
    $json_strings = json_encode($data);
    file_put_contents("text.json",$json_strings);//写入

I believe you have mastered the method after reading the case in this article. For more exciting information, please pay attention to other php Chinese websites related articles!

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