Fatal error: PHP error in file /www/htdocs/v080184/wbb3/wcf/lib/system/security/SecurityHandler.class.php (402): Function ereg() is deprecated

Information:

error message: PHP error in file /www/htdocs/v080184/wbb3/wcf/lib/system/security/SecurityHandler.class.php (402): Function ereg() is deprecated
error code: 0
file: /www/htdocs/v080184/wbb3/wcf/lib/system/WCF.class.php (255)
php version: 5.6.40-nmm9
wcf version: 1.0.11 pl 1 (Horizon)
date: Tue, 05 Nov 2024 02:06:32 +0000
request: /wbb3/wbb/index.php?page=Board&boardID=6&s=8f4ab6d20895b06a44d7dbcc03edc2e8eed3d518
referer: http://community-of-darkness.com/wbb3/wbb/index.php?action=markAsRead&boardID=6&page=Board&s=c5beacc98c338694922e9ce88d5c4bfdf36606b8

Stacktrace:

#0 [internal function]: WCF::handleError(8192, 'Function ereg()...', '/www/htdocs/v08...', 402, Array)
#1 /www/htdocs/v080184/wbb3/wcf/lib/system/security/SecurityHandler.class.php(402): ereg()
#2 /www/htdocs/v080184/wbb3/wcf/lib/system/security/plugins/datatransfer/datatransfer.class.php(17): SecurityHandler->checkReferer()
#3 /www/htdocs/v080184/wbb3/wcf/lib/system/security/SecurityHandler.class.php(188): Datatransfer->execute(Object(SecurityHandler), 'datatransfer')
#4 /www/htdocs/v080184/wbb3/wcf/lib/system/security/SecurityHandler.class.php(67): SecurityHandler->fireActions()
#5 /www/htdocs/v080184/wbb3/wcf/lib/system/event/listener/SecurityListener.class.php(35): SecurityHandler->extendedSystem()
#6 /www/htdocs/v080184/wbb3/wcf/lib/system/event/EventHandler.class.php(117): SecurityListener->execute(Object(BoardPage), 'BoardPage', 'readParameters')
#7 /www/htdocs/v080184/wbb3/wcf/lib/system/event/EventHandler.class.php(142): EventHandler::executeInheritedActions(Object(BoardPage), 'readParameters', 'BoardPage', 'readParameters@...')
#8 /www/htdocs/v080184/wbb3/wcf/lib/page/AbstractPage.class.php(44): EventHandler::fireAction(Object(BoardPage), 'readParameters')
#9 /www/htdocs/v080184/wbb3/wcf/lib/page/MultipleLinkPage.class.php(54): AbstractPage->readParameters()
#10 /www/htdocs/v080184/wbb3/wcf/lib/page/SortablePage.class.php(47): MultipleLinkPage->readParameters()
#11 /www/htdocs/v080184/wbb3/wbb/lib/page/BoardPage.class.php(45): SortablePage->readParameters()
#12 /www/htdocs/v080184/wbb3/wcf/lib/page/AbstractPage.class.php(35): BoardPage->readParameters()
#13 /www/htdocs/v080184/wbb3/wcf/lib/util/RequestHandler.class.php(63): AbstractPage->__construct()
#14 /www/htdocs/v080184/wbb3/wcf/lib/util/RequestHandler.class.php(91): RequestHandler->__construct('Board', Array, 'page')
#15 /www/htdocs/v080184/wbb3/wbb/index.php(8): RequestHandler::handle(Array)
#16 {main}