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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 |
|---|---|
| 1104 | * @param array $args Uses 'selected' argument for selected page to set selected HTML attribute for option element. |
| 1105 | */ |
| 1106 | function start_el(&$output, $page, $depth, $args, $id = 0) { |
| 1107 | $pad = str_repeat(' ', $depth * 3); |
| 1108 | |
| 1109 | $output .= "\t<option class=\"level-$depth\" value=\"$page->ID\""; |
| 1110 | if ( $page->ID == $args['selected'] ) |
| 1111 | $output .= ' selected="selected"'; |
| 1112 | $output .= '>'; |
| 1113 | $title = apply_filters( 'list_pages', $page->post_title, $page ); |
| 1114 | $output .= $pad . esc_html( $title ); |
| 1115 | $output .= "</option>\n"; |
| 1116 | } |
| 1117 | } |
| 1118 | |
| 1119 | // |
| 1120 | // Attachments |
| 1121 | // |
| 1122 | |