分页计数当前页面上的产品范围

时间:2012-03-08 18:53:26

标签: php mysql pagination

这里的分页工作正常,但除了分页,因为每页的限制为3,假设数据库中共有8个项目,所以我想显示“ 在第一页上显示1 t0 3项8“,在第二页上显示4到6项8”,依此类推。请帮助

$recordsLimit = 3;
$page = isset($_GET['page']) ? intval($_GET['page']): 1;
$totalProducts = countProducts($selectedCategoryId);
$totalPages = ceil($totalProducts / $recordsLimit);
$pageNumber = $recordsLimit * ($page - 1);
$products = getProductsByCatId($selectedCategoryId, $pageNumber, $recordsLimit);
        <?php if($totalProducts > $recordsLimit) : ?>
            <div class="pagination">
                <span>Page <?php echo $page.' of '.$totalPages; ?></span>
                <?php for($i=1; $i <= $totalPages; $i++) :
                        if($i == $page) { ?>
                            <strong><?php echo $i; ?></strong>
                 <?php  } else { ?>
                            <a href="products.php?cat_id=<?php echo $selectedCategoryId; ?>&page=<?php echo $i; ?>"><?php echo $i; ?></a>
                 <?php  }
                     endfor; ?> 
    <?php endif; ?>

3 个答案:

答案 0 :(得分:1)

尝试:

echo "Showing ".( $page == 1 ? 1 : ($page -1) * $recordsLimit +1 )." to ".($page * $recordsLimit)." item of ".$totalProducts;

答案 1 :(得分:0)

只需使用:      <?php $firstNum = (($page-1)*$recordsLimit+1) ?> showing <?php echo $firstNum; ?> to <?php echo $firstNum+2;?> items of <?php echo $totalProducts;?>

答案 2 :(得分:0)

为了解决Tom的代码问题,其中最后一页的“to”数字不正确,我添加了一个偏移量变量。为此,$ recordsLimit变量必须匹配查询中的“showposts”参数。 OP没有显示他的查询,所以我显示了我使用过的那个。

$total_results = $wp_query->found_posts;

$recordsLimit = 10; 
$args['post_type'] = 'listings';
    $args['showposts'] = $recordsLimit;     
    $args['paged'] = $paged;
    $wp_query = new WP_Query($args);

$page = (get_query_var('paged')) ? get_query_var('paged') : 1;
$countoffset = ($page * $recordsLimit)-($total_results);
$countfrom = ( $page == 1 ? 1 : ($page -1) * $recordsLimit +1 );
$countto = ($page * $recordsLimit);
if(($total_results - $countfrom) < $recordsLimit) {$countto = ($countto - $countoffset);} 
echo 'Showing '.$countfrom.' to '.$countto.' of '.$total_results.' total results';