How to Access JSON Objects from URLs in PHP and Extract the Access Token?

Accessing JSON Objects from URLs in PHP

To obtain a JSON object from a given URL and extract the "access_token" value in PHP, there are several approaches:

Using file_get_contents()

<?php
    $json = file_get_contents('url_here');
    $obj = json_decode($json);
    echo $obj->access_token;
?>

Using curl

<?php
    $ch = curl_init();
    // Enable SSL verification (set to true for production environments)
    curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, true);
    curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
    curl_setopt($ch, CURLOPT_URL, 'url_here');
    $result = curl_exec($ch);
    curl_close($ch);

    $obj = json_decode($result);
    echo $obj->access_token;
?>

To enable "file_get_contents", ensure that "allow_url_fopen" is set to "1" in your PHP configuration or use the following code:

<?php
    ini_set('allow_url_fopen', 1);

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