PHP WP菜单自定义助行器

Posted 2021-05-14

/* Navigation Walker
-------------------------------------------------------------------------------*/
	
class premierMenu extends Walker_Nav_Menu
{
	function start_el(&$output, $item, $depth, $args)
	{
    	global $wp_query;
    	$indent = ( $depth ) ? str_repeat( "\t", $depth ) : '';

    	$class_names = $value = '';

    	$classes = empty( $item->classes ) ? array() : (array) $item->classes;

    	$class_names = join( ' ', apply_filters( 'nav_menu_css_class', array_filter( $classes ), $item ) );
    	$class_names = ' class="'. esc_attr( $class_names ) . '"';

    	$output .= $indent . '<li id="menu-item-'. $item->ID . '"' . $value . $class_names .'>';

    	$attributes  = ! empty( $item->attr_title ) ? ' title="'  . esc_attr( $item->attr_title ) .'"' : '';
    	$attributes .= ! empty( $item->target )     ? ' target="' . esc_attr( $item->target     ) .'"' : '';
    	$attributes .= ! empty( $item->xfn )        ? ' rel="'    . esc_attr( $item->xfn        ) .'"' : '';
    	$attributes .= ! empty( $item->url )        ? ' href="'   . esc_attr( $item->url        ) .'"' : '';

    	$prepend = '<strong>';
    	$append = '</strong>';
    	$description  = ! empty( $item->description ) ? '<span>'.esc_attr( $item->description ).'</span>' : '';

    	if($depth != 0)
    	{
        	$description = $append = $prepend = "";
        }

        $item_output = $args->before;
        $item_output .= '<a'. $attributes .'>';
        $item_output .= $args->link_before .$prepend.apply_filters( 'the_title', $item->title, $item->ID ).$append;
        $item_output .= $description.$args->link_after;
        $item_output .= '</a>';
        $item_output .= $args->after;

        $output .= apply_filters( 'walker_nav_menu_start_el', $item_output, $item, $depth, $args );
    }
}