module_hook

Determine whether a module implements a hook.

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

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

TRUE if the module is both installed and enabled, and the hook is implemented in that module.

help_page in modules/help/help.admin.inc: Menu callback; prints a page listing general help for a module.
module_disable in includes/module.inc: Disable a given set of modules.
module_enable in includes/module.inc: Enable a given list of modules.
module_implements in includes/module.inc: Determine which modules are implementing a hook.
module_invoke in includes/module.inc: Invoke a hook in a particular module.
node_hook in modules/node/node.module: Determine whether a node hook exists.
search_data in modules/search/search.module: Perform a standard search on the given keys, and return the formatted results.
system_modules_uninstall in modules/system/system.admin.inc: Builds a form of currently disabled modules.

includes/module.inc, line 417

<?php
function module_hook($module, $hook) {
  return function_exists($module . '_' . $hook);
}
?>

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