How can I check if a module is enabled?

Question

In Drupal 7, you can use module_exists() to check whether a module is enabled (as well as whether it exists).

For example,

if (module_exists('devel')) {

How can you check whether a module is enabled in Drupal 8?

darol100 · Accepted Answer · 2018-05-28 18:29:36Z

up vote 24 down vote accepted

Just like Clive mention....

service would be preferable to using \Drupal (assuming it's an option in current context)

Here is an example of checking if a module is enable but using a service.

$moduleHandler = \Drupal::service('module_handler');
  if ($moduleHandler->moduleExists('devel')){
     // Code Here
  }

answered Oct 9 '16 at 9:05

darol100

3,1872046

\Drupal::moduleHandler ends up just making an equivalent call to get the "module_handler" service anyway (see the moduleHandler doco). The key word in Clives comment was injecting, i.e. passing the service to a constructor. – George Apr 12 at 1:10

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Patrick Kenny · Answer 2 · 2016-01-28 09:09:40Z

up vote 8 down vote

Like this:

  if (\Drupal::moduleHandler()->moduleExists('devel')) {

answered Jan 28 '16 at 9:09

Patrick Kenny

13.8k1281205

2

It's worth nothing that injecting the module_handler service would be preferable to using \Drupal (assuming it's an option in current context) – Clive♦ Jan 28 '16 at 9:15

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2 Answers 2