Link ID in wordpress url

2 comments

1. Ok. Here is your code. I just override default walker of wordpress. Please focus on text #header in this code.

   If you worry about this code. So you can go to file: …wp-includes/post-template.php at line 1238. It same code but I have add #header after get_permalink().

   Hope that help.

    class WPSE_HasHeader_Custom_Walker extends Walker_Page {
   
   
           function start_el( &$output, $page, $depth = 0, $args = array(), $current_page = 0 ) {
   
               if ( $depth )
                   $indent = str_repeat("t", $depth);
               else
                   $indent = '';
   
               extract($args, EXTR_SKIP);
               $css_class = array('page_item', 'page-item-'.$page->ID);
   
               if( isset( $args['pages_with_children'][ $page->ID ] ) )
                   $css_class[] = 'page_item_has_children';
   
               if ( !empty($current_page) ) {
                   $_current_page = get_post( $current_page );
                   if ( in_array( $page->ID, $_current_page->ancestors ) )
                       $css_class[] = 'current_page_ancestor';
                   if ( $page->ID == $current_page )
                       $css_class[] = 'current_page_item';
                   elseif ( $_current_page && $page->ID == $_current_page->post_parent )
                       $css_class[] = 'current_page_parent';
               } elseif ( $page->ID == get_option('page_for_posts') ) {
                   $css_class[] = 'current_page_parent';
               }
   
               $css_class = implode( ' ', apply_filters( 'page_css_class', $css_class, $page, $depth, $args, $current_page ) );
   
               if ( '' === $page->post_title )
                   $page->post_title = sprintf( __( '#%d (no title)' ), $page->ID );
   
               /** CHANGE LINK HERE **/
               $output .= $indent . '<li class="' . $css_class . '"><a href="' . get_permalink($page->ID) . '#header">' . $link_before . apply_filters( 'the_title', $page->post_title, $page->ID ) . $link_after . '</a>';
   
               if ( !empty($show_date) ) {
                   if ( 'modified' == $show_date )
                       $time = $page->post_modified;
                   else
                       $time = $page->post_date;
   
                   $output .= " " . mysql2date($date_format, $time);
               }
           }
       }
   
       wp_list_pages(array(
           'sort_column' => 'menu_order',
           'title_li'    => '',
           'echo'        => 1,
           'walker' => new WPSE_HasHeader_Custom_Walker()
       ));
   

   Updated:

   The second way:
   Thanks Mere Development. I thinks this is same idea with him but it much more simple in your case. Like this:

   $link = wp_list_pages(array(
                           'sort_column' => 'menu_order',
                           'title_li'    => '',
                           'echo'        => 0,
                       ));
   echo preg_replace('/<a(.*)href="([^"]*)"(.*)>/', '<a$1href="$2#header"$3>', $link);
   

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2. Christian’s answer is great, and it got me thinking about alternative ways to do this, especially ones that allow you to use your wp_page_menu() function as originally requested. So here’s another approach using a filter.

   Add this function before your wp_page_menu() call, or in functions.php

   function wp_list_pages_addhash($output) {
       $dom = new DOMDocument;
       $dom->loadHTML($output);
       $links = $dom->getElementsByTagName('a');
       foreach ($links as $link) {
         $link->setAttribute('href', $link->getAttribute('href') . '#header');
       }
       $output = $dom->saveHTML();
       return $output;
   }
   add_filter('wp_list_pages', 'wp_list_pages_addhash');
   

   Then use your wp_page_menu call as you were originally in your theme:

   wp_page_menu();
   

   Explanation: It finds every href attribute of every link in the output of wp_list_pages and adds ‘#header’ to the end. wp_page_menu in turn uses wp_list_pages to create output.

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