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Understanding Source Code

The best way to understand what a hook does is to look at where it occurs in the source code.

Remember, this hook may occur in more than one file. Moreover, the hook's context may change from version to version.

Source View

Line Code
139           $args['link_before'] = empty( $args['link_before'] ) ? '' : $args['link_before'];
140           $args['link_after'] = empty( $args['link_after'] ) ? '' : $args['link_after'];
141
142           $output .= $indent . sprintf(
143                '<li class="%s"><a href="%s">%s%s%s</a>',
144                $css_classes,
145                get_permalink( $page->ID ),
146                $args['link_before'],
147                /** This filter is documented in wp-includes/post-template.php */
148                apply_filters( 'the_title', $page->post_title, $page->ID ),
149                $args['link_after']
150           );
151
152           if ( ! empty( $args['show_date'] ) ) {
153                if ( 'modified' == $args['show_date'] ) {
154                     $time = $page->post_modified;
155                } else {
156                     $time = $page->post_date;
157                }