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The best way to understand what a hook does is to look at where it occurs in the source code.
do_action( "hook_name" )apply_filters( "hook_name", "what_to_filter" ).Remember, this hook may occur in more than one file. Moreover, the hook's context may change from version to version.
| Line | Code |
|---|---|
| 1473 | 'users.php' => array( __('Users'), 'manage_network_users') |
| 1474 | ); |
| 1475 | } |
| 1476 | |
| 1477 | $default_key = array_keys($default_action); |
| 1478 | $default_key = $default_key[0]; |
| 1479 | if ( isset($actions[$default_key]) ) |
| 1480 | unset($actions[$default_key]); |
| 1481 | $actions = array_merge($default_action, $actions); |
| 1482 | $actions = apply_filters( 'favorite_actions', $actions, $screen ); |
| 1483 | |
| 1484 | $allowed_actions = array(); |
| 1485 | foreach ( $actions as $action => $data ) { |
| 1486 | if ( current_user_can($data[1]) ) |
| 1487 | $allowed_actions[$action] = $data[0]; |
| 1488 | } |
| 1489 | |
| 1490 | if ( empty($allowed_actions) ) |
| 1491 | return; |