PHP ICS Calendar Reader: Parse iCalendar ics files to extract event details

iCalEasyReader

Usage:

<?php
header( 'Content-Type: text/plain; charset=UTF-8' );
include ( 'iCalEasyReader.php' );
$ical = new iCalEasyReader();
$lines = $ical->load( file_get_contents( 'example2.ics' ) );
var_dump( $lines );
?>

Output:

array(4) {
	["PRODID"]=>
	string(48) "-//Mozilla.org/NONSGML Mozilla Calendar V1.1//EN"
	["VERSION"]=>
	string(3) "2.0"
	["VTIMEZONE"]=>
	array(3) {
		[0]=>
		array(2) {
			["TZID"]=>
			string(13) "Europe/Berlin"
			["X-LIC-LOCATION"]=>
			string(13) "Europe/Berlin"
		}
		["DAYLIGHT"]=>
		array(1) {
			[0]=>
			array(5) {
				["TZOFFSETFROM"]=>
				string(5) "+0100"
				["TZOFFSETTO"]=>
				string(5) "+0200"
				["TZNAME"]=>
				string(4) "CEST"
				["DTSTART"]=>
				string(15) "19700329T020000"
				["RRULE"]=>
				array(3) {
					["FREQ"]=>
					string(6) "YEARLY"
					["BYDAY"]=>
					string(4) "-1SU"
					["BYMONTH"]=>
					string(1) "3"
				}
			}
		}
		["STANDARD"]=>
		array(1) {
			[0]=>
			array(5) {
				["TZOFFSETFROM"]=>
				string(5) "+0200"
				["TZOFFSETTO"]=>
				string(5) "+0100"
				["TZNAME"]=>
				string(3) "CET"
				["DTSTART"]=>
				string(15) "19701025T030000"
				["RRULE"]=>
				array(3) {
					["FREQ"]=>
					string(6) "YEARLY"
					["BYDAY"]=>
					string(4) "-1SU"
					["BYMONTH"]=>
					string(2) "10"
				}
			}
		}
	}
	["VEVENT"]=>
	array(1) {
		[0]=>
		array(9) {
			["CREATED"]=>
			string(16) "20140107T092011Z"
			["LAST-MODIFIED"]=>
			string(16) "20140107T121503Z"
			["DTSTAMP"]=>
			string(16) "20140107T121503Z"
			["UID"]=>
			string(36) "20f78720-d755-4de7-92e5-e41af487e4db"
			["SUMMARY"]=>
			string(11) "Just a Test"
			["DTSTART"]=>
			array(2) {
				["value"]=>
				string(15) "20140102T110000"
				["TZID"]=>
				string(13) "Europe/Berlin"
			}
			["DTEND"]=>
			array(2) {
				["value"]=>
				string(15) "20140102T120000"
				["TZID"]=>
				string(13) "Europe/Berlin"
			}
			["X-MOZ-GENERATION"]=>
			string(1) "4"
			["DESCRIPTION"]=>
			&string(2298) "Here is a new Class: