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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 |
|---|---|
| 383 | elseif ( 'pending' === $_GET['post_status'] ) |
| 384 | $posts_columns['modified'] = __('Submitted'); |
| 385 | else |
| 386 | $posts_columns['date'] = __('Date'); |
| 387 | $posts_columns['title'] = __('Title'); |
| 388 | $posts_columns['author'] = __('Author'); |
| 389 | if ( !in_array($_GET['post_status'], array('pending', 'draft', 'future')) ) |
| 390 | $posts_columns['comments'] = '<div class="vers"><img alt="" src="images/comment-grey-bubble.png" /></div>'; |
| 391 | $posts_columns['status'] = __('Status'); |
| 392 | $posts_columns = apply_filters('manage_pages_columns', $posts_columns); |
| 393 | |
| 394 | return $posts_columns; |
| 395 | } |
| 396 | |
| 397 | /* |
| 398 | * display one row if the page doesn't have any children |
| 399 | * otherwise, display the row and its children in subsequent rows |
| 400 | */ |
| 401 | function display_page_row( $page, $level = 0 ) { |