How to Update/Edit JSON File in PHP?

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Hi Dev,

In this tutorial, you will learn How to Update Json File in php. if you want to see example of How to Update Json Data in php then you are a right place. we will help you to give example of PHP Read and Write Json File. Here you will learn PHP Modify Json File.

Here, I will give the following example of how to update/edit json file in php program, we will use The file_get_contents() this function reads a file into a string, The json_decode() function is use to JSON encoded string and convert into a PHP variable and file_put_contents() function is use to save file.

Example: update/edit json file

I simply created data.json file with content as like below:

data.json

[
   {
     "id": 1,
     "name": "Hardik Savani",
     "email": "[email protected]"
   },
   {
     "id": 2,
     "name": "Jaydeep Pathar",
     "email": "[email protected]"
   },
   {
     "id": 3,
     "name": "Vivek Pathar",
     "email": "[email protected]"
   }
]

index.php

<?php  
   //get file
   $datas = file_get_contents('data.json');
   //Decode the JSON data into a PHP array.
   $datasDecoded = json_decode($datas, true);
   // Create Array to json file for Add data  
   $datasDecoded[] = ["id" => 4, "name" => "Mehul Bagda", "email" => "[email protected]"];
   $datasDecoded[] = ["id" => 5, "name" => "Nikhil Thummer", "email" => "[email protected]"];
   //Encode the array back into a JSON string.
   $json = json_encode($datasDecoded);
   //Save the file.
   file_put_contents('result.json', $json);
?>

Output:

result.json

[
   {
      "id":1,
      "name":"Hardik Savani",
      "email":"[email protected]"
   },
   {   
      "id":2,
      "name":"Jaydeep Pathar",
      "email":"[email protected]"
   },
   {
      "id":3,
      "name":"Vivek Pathar",
      "email":"[email protected]"
   },
   {   
      "id":4,
      "name":"Mehul Bagda",
      "email":"[email protected]"
   },
   {
      "id":5,
      "name":"Nikhil Thummer",
      "email":"[email protected]"
   }
]

I hope it could help you...