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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 |
|---|---|
| 1109 | * @param int $id |
| 1110 | */ |
| 1111 | function start_el(&$output, $page, $depth, $args, $id = 0) { |
| 1112 | $pad = str_repeat(' ', $depth * 3); |
| 1113 | |
| 1114 | $output .= "\t<option class=\"level-$depth\" value=\"$page->ID\""; |
| 1115 | if ( $page->ID == $args['selected'] ) |
| 1116 | $output .= ' selected="selected"'; |
| 1117 | $output .= '>'; |
| 1118 | $title = apply_filters( 'list_pages', $page->post_title, $page ); |
| 1119 | $output .= $pad . esc_html( $title ); |
| 1120 | $output .= "</option>\n"; |
| 1121 | } |
| 1122 | } |
| 1123 | |
| 1124 | // |
| 1125 | // Attachments |
| 1126 | // |
| 1127 | |