/**
* sort iCal compoments
*
* ascending sort on properties (if exist) x-current-dtstart, dtstart,
* x-current-dtend, dtend, x-current-due, due, duration, created, dtstamp, uid if called without arguments,
* otherwise sorting on specific (argument) property values
*
* @author Kjell-Inge Gustafsson, kigkonsult <*****@*****.**>
* @since 2.18.4 - 2013-08-18
* @param string $sortArg, optional
* @uses iCalUtilityFunctions::_setSortArgs()
* @uses iCalUtilityFunctions::_cmpfcn()
* @return void
*/
function sort($sortArg = FALSE)
{
if (!is_array($this->components) || 2 > count($this->components)) {
return;
}
if ($sortArg) {
$sortArg = strtoupper($sortArg);
if (!in_array($sortArg, array('ATTENDEE', 'CATEGORIES', 'CONTACT', 'DTSTAMP', 'LOCATION', 'ORGANIZER', 'PRIORITY', 'RELATED-TO', 'RESOURCES', 'STATUS', 'SUMMARY', 'UID', 'URL'))) {
$sortArg = FALSE;
}
}
foreach ($this->components as &$c) {
iCalUtilityFunctions::_setSortArgs($c, $sortArg);
}
usort($this->components, array('iCalUtilityFunctions', '_cmpfcn'));
}
/**
* sort iCal compoments
*
* ascending sort on properties (if exist) x-current-dtstart, dtstart,
* x-current-dtend, dtend, x-current-due, due, duration, created, dtstamp, uid if called without arguments,
* otherwise sorting on specific (argument) property values
*
* @author Kjell-Inge Gustafsson, kigkonsult <*****@*****.**>
* @since 2.21.11 - 2015-03-21
* @param string $sortArg
* @uses vcalendar::$components
* @uses iCalUtilityFunctions::$otherProps
* @uses iCalUtilityFunctions::_setSortArgs()
* @uses iCalUtilityFunctions::_cmpfcn()
* @return void
*/
function sort($sortArg = FALSE)
{
if (!is_array($this->components) || 2 > count($this->components)) {
return;
}
if ($sortArg) {
$sortArg = strtoupper($sortArg);
if (!in_array($sortArg, iCalUtilityFunctions::$otherProps) && 'DTSTAMP' != $sortArg) {
$sortArg = FALSE;
}
}
foreach ($this->components as &$c) {
iCalUtilityFunctions::_setSortArgs($c, $sortArg);
}
usort($this->components, array('iCalUtilityFunctions', '_cmpfcn'));
}
