Determines whether a module implements a hook.

Parameters

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

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

Return value

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

Related topics

9 calls to module_hook()

drupal_check_module in includes/install.inc

Checks a module's requirements.

field_help in modules/field/field.module

Implements hook_help().

field_system_info_alter in modules/field/field.module

Implements hook_system_info_alter().

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

Disables a given set of modules.

... See full list

File

includes/module.inc, line 688

Code

function module_hook ($module, $hook) {
 $function = $module . '_' . $hook;
 if (function_exists ($function)) {
 return TRUE;
 }
 // If the hook implementation does not exist, check whether it may live in an
 // optional include file registered via hook_hook_info().
 $hook_info = module_hook_info ();
 if (isset($hook_info[$hook]['group'])) {
 module_load_include ('inc', $module, $module . '.' . $hook_info[$hook]['group']);
 if (function_exists ($function)) {
 return TRUE;
 }
 }
 return FALSE;
}

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