/**
* Gets the value of the PathInfo item at index $intIndex. Will return NULL if it doesn't exist.
* If no $intIndex is given will return an array with PathInfo contents.
*
* The way PathInfo index is determined is, for example, given a URL '/folder/page.php/id/15/blue',
* QApplication::PathInfo(0) will return 'id'
* QApplication::PathInfo(1) will return '15'
* QApplication::PathInfo(2) will return 'blue'
*
* @return mixed
*/
public static function PathInfo($intIndex = null)
{
// Lookup PathInfoArray from cache, or create it into cache if it doesn't yet exist
if (!isset(self::$arrPathInfo)) {
$strPathInfo = QApplication::$PathInfo;
self::$arrPathInfo = array();
if ($strPathInfo != '') {
if ($strPathInfo == '/') {
self::$arrPathInfo[0] = '';
} else {
// Remove Trailing '/'
if (QString::FirstCharacter($strPathInfo) == '/') {
$strPathInfo = substr($strPathInfo, 1);
}
self::$arrPathInfo = explode('/', $strPathInfo);
}
}
}
if ($intIndex === null) {
return self::$arrPathInfo;
} elseif (array_key_exists($intIndex, self::$arrPathInfo)) {
return self::$arrPathInfo[$intIndex];
} else {
return null;
}
}