trolling

Hi, I'm writing this post in order to know if is it possible to do an action, when loading the page, using a module or a for example ? Thank you for your help.

Hi, I'm writing this post because i have problems when i use my hook. I have tested all the things we can do with hooks and I have the same ending and a similar errors . For an exemple and show you what was the problem, I took the hook who can move down an child item. That doesn't work corretly and the site crashes. I'm putting here the error message : Error: Call to a member function getChild() on null in /var/www/html/includes/hooks/testhook.php:6 Stack trace: #0 /var/www/html/vendor/whmcs/whmcs-foundation/lib/Hook/Manager.php(0): WHMCS\Utility\SafeInclude::{closure}() #1 /var/www/html/vendor/illuminate/support/Facades/Facade.php(261): WHMCS\Hook\Manager->run() #2 /var/www/html/includes/functions.php(0): Illuminate\Support\Facades\Facade::__callStatic() #3 /var/www/html/vendor/whmcs/whmcs-foundation/lib/ClientArea.php(0): run_hook() #4 /var/www/html/vendor/whmcs/whmcs-foundation/lib/ClientArea.php(0): WHMCS\ClientArea->outputWithoutExit() #5 /var/www/html/vendor/whmcs/whmcs-foundation/lib/Http/Message/AbstractViewableResponse.php(0): WHMCS\ClientArea->getOutputContent() #6 /var/www/html/vendor/laminas/laminas-httphandlerrunner/src/Emitter/SapiEmitter.php(41): WHMCS\Http\Message\AbstractViewableResponse->getBody() #7 /var/www/html/vendor/laminas/laminas-httphandlerrunner/src/Emitter/SapiEmitter.php(31): Laminas\HttpHandlerRunner\Emitter\SapiEmitter->emitBody() #8 /var/www/html/clientarea.php(0): Laminas\HttpHandlerRunner\Emitter\SapiEmitter->emit() #9 {main} I followed this doc https://developers.whmcs.com/themes/navigation/ I'm entering correctly the name of menu items but I don't know why that doesn't works. Here is my code if somebody could help me : use WHMCS\View\Menu\Item as MenuItem; add_hook('ClientAreaPrimarySidebar', 1, function (MenuItem $primarySidebar) { $primarySidebar->getChild('Account')->getChild('Edit Account Details')->moveUp(); });