get webpage content for waking up heroku server

wakeupheroku.php

<?php
$urls = array("http://webcontest.mirlab.org", "http://webprogramming.mirlab.org");

for ($i=0; $i<count($urls); $i++)
{
  getContent($urls[$i]);
}

function getContent($url)
{
	$curl = curl_init();
	curl_setopt($curl, CURLOPT_URL, $url);
	curl_setopt($curl, CURLOPT_RETURNTRANSFER, true);
	curl_setopt($curl, CURLOPT_HEADER, false);
	$data = curl_exec($curl);
	curl_close($curl);
}
?>