Curling caniuse

curl.php

<?php

$referer    = 'http://caniuse.com/index.php';
$url        = 'http://caniuse.com/jsonp.php';
$user_agent = 'Mozilla/5.0 (compatible; Linux) Curl/1.0';
$file       = 'data.json';

$curl_handle = curl_init();

curl_setopt($curl_handle, CURLOPT_URL, $url);
curl_setopt($curl_handle, CURLOPT_HEADER, 0);
curl_setopt($curl_handle, CURLOPT_REFERER, $referer);
curl_setopt($curl_handle, CURLOPT_RETURNTRANSFER, true);
curl_setopt($curl_handle, CURLOPT_TIMEOUT, 2);
curl_setopt($curl_handle, CURLOPT_USERAGENT, $user_agent);

$buffer = curl_exec($curl_handle);

curl_close($curl_handle);

if (!empty($buffer)) {
	file_put_contents($file, $current);
} else {
	exit(new Exception('No buffer returned.'));
}

?>