How to update/edit a JSON file using PHP [closed]

Question

Here is my JSON

[    {       "activity_code":"1",       "activity_name":"FOOTBALL"    },    {       "activity_code":"2",       "activity_name":"CRICKET"    } ] 

I need to update {"activity_code":"1","activity_name":"FOOTBALL"} to {"activity_code":"1","activity_name":"TENNIS"} based on activity_code

How can I achieve this in PHP?

Answer 1

First, you need to decode it :

$jsonString = file_get_contents('jsonFile.json'); $data = json_decode($jsonString, true); 

Then change the data :

$data[0]['activity_name'] = "TENNIS"; // or if you want to change all entries with activity_code "1" foreach ($data as $key => $entry) {     if ($entry['activity_code'] == '1') {         $data[$key]['activity_name'] = "TENNIS";     } } 

Then re-encode it and save it back in the file:

$newJsonString = json_encode($data); file_put_contents('jsonFile.json', $newJsonString);