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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 |
|---|---|
| 343 | * Filter the list of available list table views. |
| 344 | * |
| 345 | * The dynamic portion of the hook name, `$this->screen->id`, refers |
| 346 | * to the ID of the current screen, usually a string. |
| 347 | * |
| 348 | * @since 3.5.0 |
| 349 | * |
| 350 | * @param array $views An array of available list table views. |
| 351 | */ |
| 352 | $views = apply_filters( "views_{$this->screen->id}", $views ); |
| 353 | |
| 354 | if ( empty( $views ) ) |
| 355 | return; |
| 356 | |
| 357 | echo "<ul class='subsubsub'>\n"; |
| 358 | foreach ( $views as $class => $view ) { |
| 359 | $views[ $class ] = "\t<li class='$class'>$view"; |
| 360 | } |
| 361 | echo implode( " |</li>\n", $views ) . "</li>\n"; |