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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 |
---|---|
327 | * Filter the list of available list table views. |
328 | * |
329 | * The dynamic portion of the hook name, $this->screen->id, refers |
330 | * to the ID of the current screen, usually a string. |
331 | * |
332 | * @since 3.5.0 |
333 | * |
334 | * @param array $views An array of available list table views. |
335 | */ |
336 | $views = apply_filters( "views_{$this->screen->id}", $views ); |
337 |
|
338 | if ( empty( $views ) ) |
339 | return; |
340 |
|
341 | echo "<ul class='subsubsub'>\n"; |
342 | foreach ( $views as $class => $view ) { |
343 | $views[ $class ] = "\t<li class='$class'>$view"; |
344 | } |
345 | echo implode( " |</li>\n", $views ) . "</li>\n"; |