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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 |
|---|---|
| 40 | ); |
| 41 | |
| 42 | /** |
| 43 | * Filters the messages displayed when a tag is updated. |
| 44 | * |
| 45 | * @since 3.7.0 |
| 46 | * |
| 47 | * @param array $messages The messages to be displayed. |
| 48 | */ |
| 49 | $messages = apply_filters( 'term_updated_messages', $messages ); |
| 50 | |
| 51 | $message = false; |
| 52 | if ( isset( $_REQUEST['message'] ) && ( $msg = (int) $_REQUEST['message'] ) ) { |
| 53 | if ( isset( $messages[ $taxonomy ][ $msg ] ) ) { |
| 54 | $message = $messages[ $taxonomy ][ $msg ]; |
| 55 | } elseif ( ! isset( $messages[ $taxonomy ] ) && isset( $messages['_item'][ $msg ] ) ) { |
| 56 | $message = $messages['_item'][ $msg ]; |
| 57 | } |
| 58 | } |