如何限制分页页面链接？

Question

我有这样的分页页面链接。页面增长如下：

1 2 3 4 5 6 7 ,8,9,10 并继续。

但我想限制这一点，所以如果页面超过 5 个，它应该只显示 5 个这样的链接：

1 2 3 4 5... 97 98 99 其中 99 是最后一页。

如果你转到下一页，它只会像这样更改第一页：

3 4 5 ... 97 98 99

 function pagination($current_page_number, $total_records_found, $query_string = null)
 {
$page = 1;

echo "Page: ";

for ($total_pages = ($total_records_found/NUMBER_PER_PAGE); $total_pages > 0;   $total_pages--)
{
    if ($page != $current_page_number)
        echo "<a href=\"?page=$page" . (($query_string) ? "&$query_string" : "") .   "\">";

    echo "$page ";


  require_once('inc/database.php'); 

  define("NUMBER_PER_PAGE", 5); //number of records per page of the search results

  $page = ($_GET['page']) ? $_GET['page'] : 1;
  $start = ($page-1) * NUMBER_PER_PAGE;

  $sql = "SELECT * FROM members WHERE 1=1";


    $total_records = mysql_num_rows(mysql_query($sql));

    //we limit our query to the number of results we want per page
    $sql .= " LIMIT $start, " . NUMBER_PER_PAGE;


    // we display our pagination at the top of our search results

    pagination($page, $total_records, "id=$id&username=$username&email=$email");

    $loop = mysql_query($sql)
    or die ('cannot run the query because: ' . mysql_error());

      while ($record = mysql_fetch_assoc($loop))
    echo "<br/>{$record['id']}) " . stripslashes($record['username']) . " -    {$record['email']}";

    echo "<center>" . number_format($total_records) . " search results found</center>";


    if ($page != $current_page_number)
        echo "</a>";

    $page++;

Answer 1

分页是已经做过很多次的事情之一，你最好弄清楚如何使用像这样的预制类http://code.tutsplus.com/tutorials/how-to-paginate-data-with-php--net-2928

您需要做的基本工作是计算您希望在省略号的任一侧看到多少个链接......然后制作循环来创建这些链接。 ceil() 函数对您来说可能是新的，但它返回的分数总是四舍五入。

$buffer = 3;
$results_per_page = 5;
$page = ($_GET['page']) ? $_GET['page'] : 1;
$start = ($page-1) * $results_per_page;

$sql = "SELECT * FROM members WHERE 1=1";
$total_records = mysql_num_rows(mysql_query($sql));
$total_pages = ceil(intval($total_records) / $results_per_page);

for ($x = $page - $buffer; $x < $page; $x++){
    echo "<a href=\"?page=$x" . (($query_string) ? "&$query_string" : "") .   "\"> $x</a>";
}
echo " ... ";

for ($x = $total_pages - $buffer; $x <= $total_pages; $x++){
    echo "<a href=\"?page=$x" . (($query_string) ? "&$query_string" : "") .   "\"> $x</a>";
}

这个快速的一小段代码没有考虑到结果集小到足以容纳所有链接到一行。这就是为什么我建议使用已经存在的分页类。