PHP Facebook WebCal Parse

I have seen various ways to parse webcal (ical, ics) files in PHP but they tend to get a little more complicated than they need to in some cases or simply do not work.

<?phpPHP
$icalURL = '<facebook URL>';
echo '<p>iCal URL:<br/>' . $icalURL . '</p>';
$ical              = file_get_contents($icalURL);
$sED_Start         = '';
$sED_End           = '';
$sED_Title         = '';
$sED_Location      = '';
$sED_URL           = '';
$sED_Description   = '';
$sLineBreak        = array(
                "rn",
                "n",
                "r"
);
$sLineBreakReplace = '<br />';
//echo '<p>iCal Raw:<blockquote>' . str_replace($sLineBreak, $sLineBreakReplace, $ical) . '</blockquote></p>';
$event             = '';
$tmpbyline         = explode("rn", $ical);
foreach ($tmpbyline as $item) {
                //echo $item . '<br/>'; // Display it ical line by line (almost useless)
                $tmpholderarray = explode(":", $item);
                switch ($tmpholderarray[0]) {
                                case 'DTSTART':
                                                $sED_Start = dtCleanDateTime($tmpholderarray[1]);
                                                break;
                                case 'DTEND':
                                                $sED_End = dtCleanDateTime($tmpholderarray[1]);
                                                break;
                                case 'SUMMARY':
                                                $sED_Title = $tmpholderarray[1];
                                                break;
                                case 'LOCATION':
                                                $sED_Location = $tmpholderarray[1];
                                                break;
                                case 'URL':
                                                $sED_URL = $tmpholderarray[1];
                                                break;
                                case 'DESCRIPTION':
                                                $sED_Description = $tmpholderarray[1];
                                                break;
                }
                if ($item == 'END:VEVENT') {
                                $event = $event . $sED_Start . '-' . $sED_End . ' ' . $sED_Title . '<br/>';
                }
}
function dtCleanDateTime($date)
{
                $date      = str_replace('T', '', $date); //remove T
                $date      = str_replace('Z', '', $date); //remove Z
                $d         = date('d', strtotime($date)); //get date day
                $m         = date('m', strtotime($date)); //get date month
                $y         = date('Y', strtotime($date)); //get date year
                $now       = date('Y-m-d G:i:s'); //current date and time
                $eventdate = date('Y-m-d G:i:s', strtotime($date)); //user friendly date
                return $eventdate;
}
echo $event;
?>