Facebook_API_Fans_Count.php

<?php

$cURLSession = curl_init();
curl_setopt($cURLSession, CURLOPT_URL, sprintf('http://graph.facebook.com/%s', 'XXXXXXXXXXX')); // remplacer XXXXXXXXXXX par l'id de votre page Facebook
curl_setopt($cURLSession, CURLOPT_RETURNTRANSFER, 2);
curl_setopt($cURLSession, CURLOPT_CONNECTTIMEOUT, 2);
$apiResult = curl_exec($cURLSession);
curl_close($cURLSession);

$apiResult = json_decode($apiResult);

echo $apiResult->fan_count;