module_implements
includes/module.inc, line 403
- Versions
- 4.6
module_implements($hook)- 4.7
module_implements($hook, $sort = FALSE)- 5 – 6
module_implements($hook, $sort = FALSE,$refresh= FALSE)- 7
module_implements($hook, $sort = FALSE)
Determine which modules are implementing a hook.
Parameters
$hook The name of the hook (e.g. "help" or "menu").
$sort By default, modules are ordered by weight and filename, settings this option to TRUE, module list will be ordered by module name.
$refresh For internal use only: Whether to force the stored list of hook implementations to be regenerated (such as after enabling a new module, before processing hook_enable).
Return value
An array with the names of the modules which are implementing this hook.
Related topics
Code
<?php
function module_implements($hook, $sort = FALSE, $refresh = FALSE) {
static $implementations;
if ($refresh) {
$implementations = array();
return;
}
if (!isset($implementations[$hook])) {
$implementations[$hook] = array();
$list = module_list(FALSE, TRUE, $sort);
foreach ($list as $module) {
if (module_hook($module, $hook)) {
$implementations[$hook][] = $module;
}
}
}
// The explicit cast forces a copy to be made. This is needed because
// $implementations[$hook] is only a reference to an element of
// $implementations and if there are nested foreaches (due to nested node
// API calls, for example), they would both manipulate the same array's
// references, which causes some modules' hooks not to be called.
// See also http://www.zend.com/zend/art/ref-count.php.
return (array)$implementations[$hook];
}
?>