How to stop Drupal from showing unnecessary errors?

I'm deploying my Drupal 7 site to production server, and I want to stop displaying general purpose errors.


I found something about showing errors in this link:

    $conf['error_level'] = 2;
    ini_set('display_errors', TRUE);
    ini_set('display_startup_errors', TRUE);

Can someone explain what will be the appropriate value for $conf['error_level'] to stop displaying errors?

1 Answer 1


Did you try this way : admin/config/development/logging ?

(Where you can choose to display every messages, or just errors, or no message at all)


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