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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 |
|---|---|
| 278 | ); |
| 279 | |
| 280 | /** |
| 281 | * Filter the messages displayed when a tag is updated. |
| 282 | * |
| 283 | * @since 3.7.0 |
| 284 | * |
| 285 | * @param array $messages The messages to be displayed. |
| 286 | */ |
| 287 | $messages = apply_filters( 'term_updated_messages', $messages ); |
| 288 | |
| 289 | $message = false; |
| 290 | if ( isset( $_REQUEST['message'] ) && ( $msg = (int) $_REQUEST['message'] ) ) { |
| 291 | if ( isset( $messages[ $taxonomy ][ $msg ] ) ) |
| 292 | $message = $messages[ $taxonomy ][ $msg ]; |
| 293 | elseif ( ! isset( $messages[ $taxonomy ] ) && isset( $messages['_item'][ $msg ] ) ) |
| 294 | $message = $messages['_item'][ $msg ]; |
| 295 | } |
| 296 | |