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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 |
---|---|
319 | /** |
320 | * Filters the Media list table columns. |
321 | * |
322 | * @since 2.5.0 |
323 | * |
324 | * @param array $posts_columns An array of columns displayed in the Media list table. |
325 | * @param bool $detached Whether the list table contains media not attached |
326 | * to any posts. Default true. |
327 | */ |
328 | return apply_filters( 'manage_media_columns', $posts_columns, $this->detached ); |
329 | } |
330 |
|
331 | /** |
332 | * |
333 | * @return array |
334 | */ |
335 | protected function get_sortable_columns() { |
336 | return array( |
337 | 'title' => 'title', |