Php json_encode example | Php json_encode array

json_encode is a function in PHP that is used to encode a PHP data structure (such as an array or an object) into a JSON string.

JSON stands for JavaScript Object Notation, and it is a lightweight data interchange format that is easy for humans to read and write, and easy for machines to parse and generate.

Php json_encode example

Here’s a basic example of how json_encode works in PHP:

<?php

// Define a PHP associative array
$person = array(
    'name' => 'John Doe',
    'age' => 30,
    'city' => 'New York'
);

// Encode the array into a JSON string
$jsonString = json_encode($person);

// Output the JSON string
echo $jsonString;

?>

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

• We have a PHP associative array called $person containing some information about a person.
• We use the json_encode function to convert this array into a JSON string.
• The resulting JSON string contains the same data as the original PHP array, but it is formatted as a string in JSON format.
• Finally, we output the JSON string using echo.

json_encode can handle nested arrays and objects as well. It automatically converts PHP objects into associative arrays before encoding them as JSON.

Php json_encode array

Here’s another example with a nested array:

In this example, the $data array contains a nested array of hobbies. json_encode correctly encodes the entire structure into a JSON string.

<?php

// Define a nested PHP array
$data = array(
    'name' => 'John Doe',
    'age' => 30,
    'city' => 'New York',
    'hobbies' => array('reading', 'swimming', 'coding')
);

// Encode the array into a JSON string
$jsonString = json_encode($data);

// Output the JSON string
echo $jsonString;

?>

{"name":"John Doe","age":30,"city":"New York","hobbies":["reading","swimming","coding"]}