你好我们有问题我的分页有额外的空白页
我有64个项目,每个页面显示8个项目,所以我的预期页面是从第1页到第8页
但是当我使用它时,我的第9页到第12页是空白的。
与我的其他类别相同,只有1个项目,然后是12页,所以剩下的11页是空白的,请提前帮助我,谢谢!
这是我的代码
<?php
$tbl_name="tbl_product"; //your table name
// How many adjacent pages should be shown on each side?
$adjacents = 3;
/*
First get total number of rows in data table.
If you have a WHERE clause in your query, make sure you mirror it here.
*/
$query = "SELECT COUNT(*) FROM $tbl_name";
$total_items = mysql_fetch_array(mysql_query($query));
/* Setup vars for query. */
$targetpage = "category.php"; //your file name (the name of this file)
$limit = 8; //how many items to show per page
if(isset($_GET['page'])) {
$page = $_GET['page'];
$start = ($page - 1) * $limit; //first item to display on this page
} else {
$page = 0;
$start = 0; //if no page var is given, set start to 0
}
/* Get data. */
$sql = "SELECT * FROM $tbl_name where categoryID = '$category_id' LIMIT $start, $limit";
$result = mysql_query($sql);
/* Setup page vars for display. */
if ($page == 0) $page = 1; //if no page var is given, default to 1.
$prev = $page - 1; //previous page is page - 1
$next = $page + 1; //next page is page + 1
$lastpage = ceil($total_items[0]/$limit); //lastpage is = total pages / items per page, rounded up.
$lpm1 = $lastpage - 1; //last page minus 1
/*
Now we apply our rules and draw the pagination object.
We're actually saving the code to a variable in case we want to draw it more than once.
*/
$pagination = "";
if($lastpage > 1)
{
$pagination .= "<div class=\"pagination pagination-centered\"><ul>";
//previous button
if ($page > 1)
$pagination.= "<li><a href=\"$targetpage?categoryID=$category_id&page=$prev\">previous</a></li>";
else
$pagination.= "<li class=\"disabled\"><a href=\"#\">previous</a></li>";
//pages
if ($lastpage < 7 + ($adjacents * 2)) //not enough pages to bother breaking it up
{
for ($counter = 1; $counter <= $lastpage; $counter++)
{
if ($counter == $page)
$pagination.= "<li class=\"active\"><a href=\"#\">$counter</a></li>";
else
$pagination.= "<li><a href=\"$targetpage?categoryID=$category_id&page=$counter\">$counter</a></li>";
}
}
elseif($lastpage > 5 + ($adjacents * 2)) //enough pages to hide some
{
//close to beginning; only hide later pages
if($page < 1 + ($adjacents * 2))
{
for ($counter = 1; $counter < 4 + ($adjacents * 2); $counter++)
{
if ($counter == $page)
$pagination.= "<li class=\"active\"><a href=\"#\">$counter</a></li>";
else
$pagination.= "<a href=\"$targetpage?categoryID=$category_id&page=$counter\">$counter</a>";
}
$pagination.= "<a href=\"#\">...</a>";
$pagination.= "<a href=\"$targetpage?categoryID=$category_id&page=$lpm1\">$lpm1</a>";
$pagination.= "<a href=\"$targetpage?categoryID=$category_id&page=$lastpage\">$lastpage</a>";
}
//in middle; hide some front and some back
elseif($lastpage - ($adjacents * 2) > $page && $page > ($adjacents * 2))
{
$pagination.= "<a href=\"$targetpage?categoryID=$category_id&page=1\">1</a>";
$pagination.= "<a href=\"$targetpage?categoryID=$category_id&page=2\">2</a>";
$pagination.= "<a href=\"#\">...</a>";
for ($counter = $page - $adjacents; $counter <= $page + $adjacents; $counter++)
{
if ($counter == $page)
$pagination.= "<li class=\"active\"><a href=\"#\">$counter</a></li>";
else
$pagination.= "<a href=\"$targetpage?categoryID=$category_id&page=$counter\">$counter</a>";
}
$pagination.= "<a href=\"#\">...</a>";
$pagination.= "<a href=\"$targetpage?categoryID=$category_id&page=$lpm1\">$lpm1</a>";
$pagination.= "<a href=\"$targetpage?categoryID=$category_id&page=$lastpage\">$lastpage</a>";
}
//close to end; only hide early pages
else
{
$pagination.= "<a href=\"$targetpage?categoryID=$category_id&page=1\">1</a>";
$pagination.= "<a href=\"$targetpage?categoryID=$category_id&page=2\">2</a>";
$pagination.= "<a href=\"#\">...</a>";
for ($counter = $lastpage - (2 + ($adjacents * 2)); $counter <= $lastpage; $counter++)
{
if ($counter == $page)
$pagination.= "<li class=\"active\"><a href=\"#\">$counter</a></li>";
else
$pagination.= "<a href=\"$targetpage?categoryID=$category_id&page=$counter\">$counter</a>";
}
}
}
//next button
if ($page < $counter - 1)
$pagination.= "<a href=\"$targetpage?categoryID=$category_id&page=$next\">next</a>";
else
$pagination.= "<li class=\"disabled\"><a href=\"#\">next</a></li>";
$pagination.= "</ul></div>\n";
}
?>
答案 0 :(得分:0)
您用于计算记录数的查询与您用于获取数据的查询不同。
更改此代码块:
/*
First get total number of rows in data table.
If you have a WHERE clause in your query, make sure you mirror it here.
*/
$query = "SELECT COUNT(*) FROM $tbl_name WHERE categoryID = '$category_id'";
$total_items = mysql_fetch_array(mysql_query($query));
它在代码中说:“如果查询中有WHERE子句,请确保在此镜像它。”
评论有时很重要。
答案 1 :(得分:-1)
在两个WHERE
变量上使用$query
子句:
WHERE categoryID = '$category_id';
$query = "SELECT COUNT(*) FROM $tbl_name WHERE categoryID = '$category_id'";
$query = "SELECT COUNT(*) FROM $tbl_name WHERE categoryID = '$category_id'";