wordpress　URL　ie　日本語化　wp_list_pages()　 get_permalink()　dencode

例）

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・HTMLソース
<a href="http://hoge.com/%e3%81%82%e3%81%84%e3%81%86%e3%81%88%e3%81%8a">あいおうえ</a>
→ブラウザURL欄表示
　http://hoge.com/%e3%81%82%e3%81%84%e3%81%86%e3%81%88%e3%81%8a

・カスタマイズ後

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・HTMLソース
<a href="http://hoge.com/あいうえお>あいおうえ</a>
→ブラウザURL欄表示
　http://hoge.com/あいうえお

・hoge/wp-includes/class-walker-page.php
166行目

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get_permalink( $page->ID ),
↓
urldecode(get_permalink( $page->ID )),
class-walker-page.php
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<?php
/**
 * Post API: Walker_Page class
 *
 * @package WordPress
 * @subpackage Template
 * @since 4.4.0
 */
 
/**
 * Core walker class used to create an HTML list of pages.
 *
 * @since 2.1.0
 *
 * @see Walker
 */
class Walker_Page extends Walker {
 
  /**
   * What the class handles.
   *
   * @since 2.1.0
   * @access public
   * @var string
   *
   * @see Walker::$tree_type
   */
  public $tree_type = 'page';
 
  /**
   * Database fields to use.
   *
   * @since 2.1.0
   * @access private
   * @var array
   *
   * @see Walker::$db_fields
   * @todo Decouple this.
   */
  public $db_fields = array( 'parent' => 'post_parent', 'id' => 'ID' );
 
  /**
   * Outputs the beginning of the current level in the tree before elements are output.
   *
   * @since 2.1.0
   * @access public
   *
   * @see Walker::start_lvl()
   *
   * @param string $output Passed by reference. Used to append additional content.
   * @param int    $depth  Optional. Depth of page. Used for padding. Default 0.
   * @param array  $args   Optional. Arguments for outputting the next level.
   *                       Default empty array.
   */
  public function start_lvl( &$output, $depth = 0, $args = array() ) {
    if ( 'preserve' === $args['item_spacing'] ) {
      $t = "\t";
      $n = "\n";
    } else {
      $t = '';
      $n = '';
    }
    $indent = str_repeat( $t, $depth );
    $output .= "{$n}{$indent}<ul class='children'>{$n}";
  }
 
  /**
   * Outputs the end of the current level in the tree after elements are output.
   *
   * @since 2.1.0
   * @access public
   *
   * @see Walker::end_lvl()
   *
   * @param string $output Passed by reference. Used to append additional content.
   * @param int    $depth  Optional. Depth of page. Used for padding. Default 0.
   * @param array  $args   Optional. Arguments for outputting the end of the current level.
   *                       Default empty array.
   */
  public function end_lvl( &$output, $depth = 0, $args = array() ) {
    if ( 'preserve' === $args['item_spacing'] ) {
      $t = "\t";
      $n = "\n";
    } else {
      $t = '';
      $n = '';
    }
    $indent = str_repeat( $t, $depth );
    $output .= "{$indent}</ul>{$n}";
  }
 
  /**
   * Outputs the beginning of the current element in the tree.
   *
   * @see Walker::start_el()
   * @since 2.1.0
   * @access public
   *
   * @param string  $output       Used to append additional content. Passed by reference.
   * @param WP_Post $page         Page data object.
   * @param int     $depth        Optional. Depth of page. Used for padding. Default 0.
   * @param array   $args         Optional. Array of arguments. Default empty array.
   * @param int     $current_page Optional. Page ID. Default 0.
   */
  public function start_el( &$output, $page, $depth = 0, $args = array(), $current_page = 0 ) {
    if ( 'preserve' === $args['item_spacing'] ) {
      $t = "\t";
      $n = "\n";
    } else {
      $t = '';
      $n = '';
    }
    if ( $depth ) {
      $indent = str_repeat( $t, $depth );
    } else {
      $indent = '';
    }
 
    $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 ( $_current_page && 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';
    }
 
    /**
     * Filters the list of CSS classes to include with each page item in the list.
     *
     * @since 2.8.0
     *
     * @see wp_list_pages()
     *
     * @param array   $css_class    An array of CSS classes to be applied
     *                              to each list item.
     * @param WP_Post $page         Page data object.
     * @param int     $depth        Depth of page, used for padding.
     * @param array   $args         An array of arguments.
     * @param int     $current_page ID of the current page.
     */
    $css_classes = implode( ' ', apply_filters( 'page_css_class', $css_class, $page, $depth, $args, $current_page ) );
 
    if ( '' === $page->post_title ) {
      /* translators: %d: ID of a post */
      $page->post_title = sprintf( __( '#%d (no title)' ), $page->ID );
    }
 
    $args['link_before'] = empty( $args['link_before'] ) ? '' : $args['link_before'];
    $args['link_after'] = empty( $args['link_after'] ) ? '' : $args['link_after'];
 
    $output .= $indent . sprintf(
      '<li class="%s"><a href="%s">%s%s%s</a>',
      $css_classes,
      get_permalink( $page->ID ),
      $args['link_before'],
      /** This filter is documented in wp-includes/post-template.php */
      apply_filters( 'the_title', $page->post_title, $page->ID ),
      $args['link_after']
    );
 
    if ( ! empty( $args['show_date'] ) ) {
      if ( 'modified' == $args['show_date'] ) {
        $time = $page->post_modified;
      } else {
        $time = $page->post_date;
      }
 
      $date_format = empty( $args['date_format'] ) ? '' : $args['date_format'];
      $output .= " " . mysql2date( $date_format, $time );
    }
  }
 
  /**
   * Outputs the end of the current element in the tree.
   *
   * @since 2.1.0
   * @access public
   *
   * @see Walker::end_el()
   *
   * @param string  $output Used to append additional content. Passed by reference.
   * @param WP_Post $page   Page data object. Not used.
   * @param int     $depth  Optional. Depth of page. Default 0 (unused).
   * @param array   $args   Optional. Array of arguments. Default empty array.
   */
  public function end_el( &$output, $page, $depth = 0, $args = array() ) {
    if ( 'preserve' === $args['item_spacing'] ) {
      $t = "\t";
      $n = "\n";
    } else {
      $t = '';
      $n = '';
    }
    $output .= "</li>{$n}";
  }
 
}

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