在分页中添加过渡页面

Question

我现在需要为临时页面添加分页，当一个有 9 个页面时，它看起来像这样： 1 2 3 ... 9

我想给出一个介于 3 和 9 之间的中间点，即

1 2 3 ... 6 ... 9

当我在最后一页/中间页时，我也希望相同的中间子页。但这应该由自己知道如何迈出第一步。

我所有的想法都失败了。有人对这样的解决方案有想法吗？

完整的工作代码在这里：

<?php

 
 if( is_singular() )
     return;

 global $wp_query;

 /** Stop execution if there's only 1 page */
 if( $wp_query->max_num_pages <= 1 )
     return;

 $paged = get_query_var( 'paged' ) ? absint( get_query_var( 'paged' ) ) : 1;
 $max   = intval( $wp_query->max_num_pages );

 /** Add current page to the array */
 if ( $paged >= 1 )
     $links[] = $paged;

 /** Add the pages around the current page to the array */
 if ( $paged >= 3 ) {
     $links[] = $paged - 1;
     $links[] = $paged - 2;
 }

 if ( ( $paged + 2 ) <= $max ) {
     $links[] = $paged + 2;
     $links[] = $paged + 1;
 }

 echo '<div class="navigation"><ul>' . "\n";

 /** Previous Post Link */
 if ( get_previous_posts_link() )
     printf( '<li class="prev_post">%s</li>' . "\n", get_previous_posts_link('<') );

 /** Link to first page, plus ellipses if necessary */
 if ( ! in_array( 1, $links ) ) {
     $class = 1 == $paged ? ' class="active"' : '';

     printf( '<li%s><a href="%s">%s</a></li>' . "\n", $class, esc_url( get_pagenum_link( 1 ) ), '1' );

     if ( ! in_array( 2, $links ) )
         echo '<li>…</li>';
 }

 /** Link to current page, plus 2 pages in either direction if necessary */
 sort( $links );
 foreach ( (array) $links as $link ) {
     $class = $paged == $link ? ' class="active"' : '';
     printf( '<li%s><a href="%s">%s</a></li>' . "\n", $class, esc_url( get_pagenum_link( $link ) ), $link );
 }

 /** Link to last page, plus ellipses if necessary */
 if ( ! in_array( $max, $links ) ) {
     if ( ! in_array( $max - 1, $links ) )
         echo '<li >…</li>' . "\n";

     $class = $paged == $max ? ' class="active"' : '';
     printf( '<li%s><a href="%s">%s</a></li>' . "\n", $class, esc_url( get_pagenum_link( $max ) ), $max );
 }

 /** Next Post Link */
 if ( get_next_posts_link() )
     printf( '<li class="next_post">%s</li>' . "\n", get_next_posts_link('>') );

 echo '</ul></div>' . "\n";

Answer 1

一般的分页代码流可能如下所示：

<?php

function getPageDisplayArray(int $currentPage, int $totalCount, int $pageLen = 10): array
{
   $paginationArr[$currentPage] = 1;
   $totalPagesToDisplay = floor(($totalCount) / $pageLen);
   
   //Get preceding pages logic
   $pagesBefore = $currentPage - 1;
   $iBefore = 2; //Number of pages you want befpre the current page
   while($pagesBefore > 0 && $iBefore > 0) { 
       $paginationArr[$pagesBefore--] = 0;
       $iBefore--;
   }

   //Get anteceding pages
   $pagesAfter = $totalPagesToDisplay - ($pagesBefore + 1);
   $iAfter = min([$pagesAfter, 2]); //Number of pages you want after your current page
   while(-$iAfter < 0) { 
       //Either return the two pages after or don't if there are no pages after
       $paginationArr[$iAfter + $currentPage] = 0;
       $iAfter--;
   }

   if($pagesAfter > 2) {
       //Calcluate Midpoint
       $midpoint = floor($totalPagesToDisplay / 2) + 1;
       if(!isset($paginationArr[$midpoint])) {
           $paginationArr[$midpoint] = 0;
       }
   }
   //Link the first page always if it hasn't already been set
   if(!isset($paginationArr[1])) {
       $paginationArr[1] = 0;
   }

   //Link the final page if it has not already been set.
   if(!isset($paginationArr[$totalPagesToDisplay])) {
      $paginationArr[$totalPagesToDisplay] = 0;
   }
   ksort($paginationArr);
   return $paginationArr;
}

当前页面、页面长度和总计数是您的参数。这里将在两侧显示两个页面作为显示页面，以及任何 arbitrart 集合的集合的第一页、最后一页和中间页。这将返回一个配置数组，该数组将“活动”页面的值设置为 1，而所有其他页面的页码键和值设置为 0。剩下的就是在布局中显示您认为合适的值。