Online PHP editor | refs for Dt56V

<?php // Variables used in this script: // $summary - text title of the event // $datestart - the starting date (in seconds since unix epoch) // $dateend - the ending date (in seconds since unix epoch) // $address - the event's address // $uri - the URL of the event (add http://) // $description - text description of the event // $filename - the name of this file for saving (e.g. my-event-name.ics) // // Notes: // - the UID should be unique to the event, so in this case I'm just using // uniqid to create a uid, but you could do whatever you'd like. // // - iCal requires a date format of "yyyymmddThhiissZ". The "T" and "Z" // characters are not placeholders, just plain ol' characters. The "T" // character acts as a delimeter between the date (yyyymmdd) and the time // (hhiiss), and the "Z" states that the date is in UTC time. Note that if // you don't want to use UTC time, you must prepend your date-time values // with a TZID property. See RFC 5545 section 3.3.5 // // - The Content-Disposition: attachment; header tells the browser to save/open // the file. The filename param sets the name of the file, so you could set // it as "my-event-name.ics" or something similar. // // - Read up on RFC 5545, the iCalendar specification. There is a lot of helpful // info in there, such as formatting rules. There are also many more options // to set, including alarms, invitees, busy status, etc. // // https://www.ietf.org/rfc/rfc5545.txt // 1. Set the correct headers for this file header('Content-type: text/calendar; charset=utf-8'); header('Content-Disposition: attachment; filename=' . $filename); // 2. Define helper functions // Converts a unix timestamp to an ics-friendly format // NOTE: "Z" means that this timestamp is a UTC timestamp. If you need // to set a locale, remove the "\Z" and modify DTEND, DTSTAMP and DTSTART // with TZID properties (see RFC 5545 section 3.3.5 for info) // // Also note that we are using "H" instead of "g" because iCalendar's Time format // requires 24-hour time (see RFC 5545 section 3.3.12 for info). function dateToCal($timestamp) { return date('Ymd\THis\Z', $timestamp); } // Escapes a string of characters function escapeString($string) { return preg_replace('/([\,;])/','\\\$1', $string); } // 3. Echo out the ics file's contents ?> BEGIN:VCALENDAR VERSION:2.0 PRODID:-//hacksw/handcal//NONSGML v1.0//EN CALSCALE:GREGORIAN BEGIN:VEVENT DTEND:<?= dateToCal($dateend) ?> UID:<?= uniqid() ?> DTSTAMP:<?= dateToCal(time()) ?> LOCATION:<?= escapeString($address) ?> DESCRIPTION:<?= escapeString($description) ?> URL;VALUE=URI:<?= escapeString($uri) ?> SUMMARY:<?= escapeString($summary) ?> DTSTART:<?= dateToCal($datestart) ?> END:VEVENT END:VCALENDAR