How do I add an entry to a json string?

✔ Recommended Answer

There are multiple ways to archive this. The simplest way, merge these arrays using array_merge

Here is example code

$extra = array(    'additionalentry1'               =>     "additionalvalue1",    'additionalentry2'          =>     "additionalvalue2",    'additionalentry3'     =>     "additionalvalue3");foreach ($data as $key => $value){    $data[$key] = array_merge($value, $extra);}print_r($data);

I simply use foreach loop for $data and merge $extra array with existing array data of every index of $data

Implementation in your code, you can replace the following code with my above loop code

$array_data[] = $extra;$final_data = json_encode($array_data);  $rows[] = $final_data;

Source: stackoverflow.com

Answered By: Muhammad Hassaan

Method #2

To add an entry to a JSON string in PHP, you first need to decode the JSON string into a PHP array using the json_decode function. You can then add the new entry to the array, and encode the updated array back into a JSON string using the json_encode function.

Here's an example code snippet that demonstrates how to add an entry to a JSON string in PHP:

php
// Example JSON string
$jsonString = '{"name": "John", "age": 30}';

// Decode the JSON string into a PHP array
$data = json_decode($jsonString, true);

// Add a new entry to the array
$data['city'] = 'New York';

// Encode the updated array back into a JSON string
$newJsonString = json_encode($data);

// Output the updated JSON string
echo $newJsonString;

In this example, we first define a JSON string containing two entries, "name" and "age". We then use json_decode to convert this string into a PHP associative array. We then add a new entry, "city", to the array. Finally, we use json_encode to convert the updated array back into a JSON string, and output the result.

The resulting JSON string will look like this:

json
{"name":"John","age":30,"city":"New York"}