- file_get_contents: documentation ( source)
<?php
echo file_get_contents('http://maps.google.com/maps?f=d&hl=en&geocode=&saddr=Wesseling&daddr=bonn&sll=50.835525,7.02969&sspn=0.339547,0.617981&ie=UTF8&z=10&om=1&output=kml&key=APIKEY--APIKEY--APIKEY--APIKEY--APIKEY');
?>