Calls a function called $module . '_' . $hook if one exists.

Parameters

string $module: The name of the module (without the .module extension).

string $hook: The name of the hook to invoke.

array $args: Arguments to pass to the hook implementation.

Return value

mixed The return value of the hook implementation.

1 call to ModuleHandler::legacyInvoke()

ModuleHandler::invoke in core/lib/Drupal/Core/Extension/ModuleHandler.php

Invokes a hook in a particular module.

File

core/lib/Drupal/Core/Extension/ModuleHandler.php, line 339

Class

ModuleHandler

Class that manages modules in a Drupal installation.

Namespace

Drupal\Core\Extension

Code

protected function legacyInvoke($module, $hook, array $args = []) {
    $this->load($module);
    $function = $module . '_' . $hook;
    if (function_exists($function) && !(new \ReflectionFunction($function))->getAttributes(LegacyHook::class)) {
        return $function(...$args);
    }
    return NULL;
}

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