HKR kursschema ics converter

kalendar

<?php

$file = file_get_contents($_GET['URL'], "r") or die("Error. File not found");
$lower = html_entity_decode(strstr($file, "</tr><tr"), ENT_QUOTES);
$line = (explode("</tr>", $lower));

echo "BEGIN:VCALENDAR\n";
echo "VERSION:2.0\n";
echo "PRODID:PHP\n";

foreach ($line as $i) {
    $value = (explode("</td>", $i));
    if (sizeof($value) == 12) {
        echo "BEGIN:VEVENT\n";
        echo "DTSTAMP:".date('Ymd').'T'.date('His')."Z\n";
        
        if (strlen(strip_tags($value[3])) > 1)
            $vDate = strip_tags($value[3]);
        
        echo "DTSTART:";
        $vTime = substr(strip_tags($value[4]), 0, strlen(strip_tags($value[4]) ) - 1);
        $vTime = explode("-", $vTime);
        echo "20".$vDate."T".str_replace(":", "", $vTime[0])."00\n";
        
        echo "DTEND:";
        $vTime = substr(strip_tags($value[4]), 0, strlen(strip_tags($value[4]) ) - 1);
        $vTime = explode("-", $vTime);
        echo "20".$vDate."T".str_replace(":", "", $vTime[1])."00\n";
        
        echo "DESCRIPTION:".substr(strip_tags($value[7]), 0, strlen(strip_tags($value[7]) ) - 1)."\n";
        echo "SUMMARY:".substr(strip_tags($value[9]), 0, strlen(strip_tags($value[9]) ) - 1)."\n";
        
        echo "END:VEVENT\n";
    }
}

echo "END:VCALENDAR\n";

?>