Use wordpress.org API (plugins & themes) with PHP curl

wordpress-org-api.php

<?php
/**
 * WordPress.org Plugin API
 */

// Plugin Slug
$slug = 'simple-marketplace-affiliate';

$args = (object) array( 'slug' => $slug );
$fields = array( 'action' => 'plugin_information', 'timeout' => 15, 'request' => serialize( $args ) );
$url = 'http://api.wordpress.org/plugins/info/1.0/';

foreach($fields as $key=>$value) { $fields_string .= $key.'='.$value.'&'; }
rtrim($fields_string, '&');

$ch = curl_init();

curl_setopt($ch,CURLOPT_URL, $url);
curl_setopt($ch,CURLOPT_POST, count($fields));
curl_setopt($ch,CURLOPT_POSTFIELDS, $fields_string);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);

$result = curl_exec($ch);
$result = unserialize($result); 

curl_close($ch);

// Output (object)
echo '<pre>' . print_r($result, true) . '</pre>';