Determines whether there are implementations of a hook.

Parameters

string $hook: The name of the hook (e.g. "help" or "menu").

string|string[]|null $modules: (optional) A single module or multiple modules to check if they have any implementations of a hook. Use NULL to check if any enabled module has implementations.

Return value

bool If $modules is provided, then TRUE if there are any implementations by the module(s) provided. Or if $modules if NULL, then TRUE if there are any implementations. Otherwise FALSE.

Overrides ModuleHandlerInterface::hasImplementations

File

core/lib/Drupal/Core/Extension/ModuleHandler.php, line 353

Class

ModuleHandler

Class that manages modules in a Drupal installation.

Namespace

Drupal\Core\Extension

Code

public function hasImplementations(string $hook, $modules = NULL) : bool {
  $list = $this->getHookImplementationList($hook);
  if ($modules === NULL) {
    return $list->hasImplementations();
  }
  return $list->hasImplementationsForModules((array) $modules);
}

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