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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 |
|---|---|
| 3251 | 'media-new.php' => array(__('Upload'), 'upload_files'), |
| 3252 | 'edit-comments.php' => array(__('Comments'), 'moderate_comments') |
| 3253 | ); |
| 3254 | |
| 3255 | $default_key = array_keys($default_action); |
| 3256 | $default_key = $default_key[0]; |
| 3257 | if ( isset($actions[$default_key]) ) |
| 3258 | unset($actions[$default_key]); |
| 3259 | $actions = array_merge($default_action, $actions); |
| 3260 | $actions = apply_filters('favorite_actions', $actions); |
| 3261 | |
| 3262 | $allowed_actions = array(); |
| 3263 | foreach ( $actions as $action => $data ) { |
| 3264 | if ( current_user_can($data[1]) ) |
| 3265 | $allowed_actions[$action] = $data[0]; |
| 3266 | } |
| 3267 | |
| 3268 | if ( empty($allowed_actions) ) |
| 3269 | return; |