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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 |
|---|---|
| 694 | /** |
| 695 | * Filter the arguments for the Recent Posts widget. |
| 696 | * |
| 697 | * @since 3.4.0 |
| 698 | * |
| 699 | * @see WP_Query::get_posts() |
| 700 | * |
| 701 | * @param array $args An array of arguments used to retrieve the recent posts. |
| 702 | */ |
| 703 | $r = new WP_Query( apply_filters( 'widget_posts_args', array( |
| 704 | 'posts_per_page' => $number, |
| 705 | 'no_found_rows' => true, |
| 706 | 'post_status' => 'publish', |
| 707 | 'ignore_sticky_posts' => true |
| 708 | ) ) ); |
| 709 | |
| 710 | if ($r->have_posts()) : |
| 711 | ?> |
| 712 | <?php echo $before_widget; ?> |