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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 |
|---|---|
| 1294 | $exclude_array = ( $parsed_args['exclude'] ) ? explode( ',', $parsed_args['exclude'] ) : array(); |
| 1295 | |
| 1296 | /** |
| 1297 | * Filters the array of pages to exclude from the pages list. |
| 1298 | * |
| 1299 | * @since 2.1.0 |
| 1300 | * |
| 1301 | * @param string[] $exclude_array An array of page IDs to exclude. |
| 1302 | */ |
| 1303 | $parsed_args['exclude'] = implode( ',', apply_filters( 'wp_list_pages_excludes', $exclude_array ) ); |
| 1304 | |
| 1305 | $parsed_args['hierarchical'] = 0; |
| 1306 | |
| 1307 | // Query pages. |
| 1308 | $pages = get_pages( $parsed_args ); |
| 1309 | |
| 1310 | if ( ! empty( $pages ) ) { |
| 1311 | if ( $parsed_args['title_li'] ) { |
| 1312 | $output .= '<li class="pagenav">' . $parsed_args['title_li'] . '<ul>'; |