composer require package-name
composer require monolog/monolog
$ch = curl_init(); curl_setopt($ch, CURLOPT_URL, 'https://jsonplaceholder.typicode.com/posts'); curl_setopt($ch, CURLOPT_RETURNTRANSFER, true); $result = curl_exec($ch); curl_close($ch); $data = json_decode($result, true); foreach ($data as $post) { echo $post['title'] . "\n"; }This code fetches data from the JSONPlaceholder REST API and displays the title of each post. In conclusion, Composer is a package library that can be used to easily fetch packages for your PHP project, while cURL is a library that allows you to fetch data from external APIs.