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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 |
|---|---|
| 40 | /** |
| 41 | * Filter the arguments for the Pages widget. |
| 42 | * |
| 43 | * @since 2.8.0 |
| 44 | * |
| 45 | * @see wp_list_pages() |
| 46 | * |
| 47 | * @param array $args An array of arguments to retrieve the pages list. |
| 48 | */ |
| 49 | $out = wp_list_pages( apply_filters( 'widget_pages_args', array( |
| 50 | 'title_li' => '', |
| 51 | 'echo' => 0, |
| 52 | 'sort_column' => $sortby, |
| 53 | 'exclude' => $exclude |
| 54 | ) ) ); |
| 55 | |
| 56 | if ( ! empty( $out ) ) { |
| 57 | echo $args['before_widget']; |
| 58 | if ( $title ) { |