Get Content from URL with Cookie Enabled

<?php
$url = 'URL';
$_curl = curl_init();
curl_setopt($_curl, CURLOPT_SSL_VERIFYHOST, 1);
curl_setopt($_curl, CURLOPT_SSL_VERIFYPEER, false);
curl_setopt($_curl, CURLOPT_RETURNTRANSFER, true);
curl_setopt($_curl, CURLOPT_COOKIEFILE, './cookiePath.txt');
curl_setopt($_curl, CURLOPT_COOKIEJAR, './cookiePath.txt');
curl_setopt($_curl, CURLOPT_USERAGENT, 'Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 5.1; .NET CLR 2.0.50727; .NET CLR 3.0.04506.30; InfoPath.1)');
curl_setopt($_curl, CURLOPT_FOLLOWLOCATION, true); //new added
curl_setopt($_curl, CURLOPT_URL, $url);
$rtn = curl_exec( $_curl );

//Optional, replace string Original with New
$rtn = str_replace("Original", "New", $rtn);