Action and Display in Prestashop

action<Something>

Triggered by specific events that take place in PrestaShop.

display<Something>

Result in something being displayed, either in the front-end or the back-end.

public function hookDisplayHeader(array $params) { // Your code. } public function hookDisplayFooter(array $params) { // Your code. } public function hookActionOtherHook(array $params) { // Your code. }

Hook::exec('actionCartUpdateQuantityBefore', $data);