PHP and JSON

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JSON (JavaScript Object Notation) represents data as a light and readable format suitable for storage and data transportation. The format serves as a standard for data transfer between web application layers such as frontend JavaScript and backend PHP systems.

 

php and json

Functions in PHP for JSON

Function Description
json_encode() Converts PHP data → JSON string
json_decode() Converts JSON string → PHP data

1. Encoding PHP Data to JSON

<?php
$data = [
    "name" => "Alice",
    "age" => 25,
    "email" => "alice@example.com"
];

$json = json_encode($data);
echo $json;
?>
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Decoding JSON to PHP

<?php
$json = '{"name":"Alice","age":25,"email":"alice@example.com"}';

$data = json_decode($json, true); // true → associative array
echo $data["name"];  // Output: Alice
?>
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