我将如何为这个MySQL＆amp;编写分页脚本？ PHP查询。
if (isset($_GET['c'])) {
$c = $_GET['c'];
}
$query = mysql_query("SELECT * FROM Categories WHERE category = '$c' ");
WHILE($datarows = mysql_fetch_array($query)):
$id = $datarows['id'];
$category = $datarows['category'];
$code = $datarows['code'];
endwhile;
$query2 = mysql_query("SELECT * FROM Games WHERE category = '$code' ");
WHILE($datarows_cat = mysql_fetch_array($query2)):
$title = $datarows_cat['title'];
$description = $datarows_cat['description'];
$imgurl = $datarows_cat['image_name'];
$category = $datarows_cat['category'];
$views = $datarows_cat['view_count'];
$pagename = $datarows_cat['pagename'];
$featured = $datarows_cat['featured'];
if ($featured =="1") {$f = "<img src='http://my-site.com/images/star.png' width='13px' title='Featured Game' /> Featured"; } else {$f = "";}
if(is_int($views/2)) {
$views = $views / 2;
} else { $views = $views / 2 + .5; }
if (strlen($description) > 95) {
$desc= substr($description,0,95);
$desmod = "$desc...<br/><a href=\"http://my-site.com/$pagename#1\" title=\"$description\">- Read More</a>";
}
else {$desmod = "$description";}
echo "$f - <a href=\"http://my-site.com/$pagename\">$title - $desmod</a><br/>";
endwhile;
例如，当我访问http://my-site.com/categories/Action时，代码在我的类别表中查找该类别，然后一旦获得该类别的唯一代码，它就运行另一个查询以查找另一个表中的所有游戏类别代码。但是，目前我为一个类别加载了200多个游戏，这会导致大量的加载时间。
感谢您的帮助！
答案 0 :(得分：7)
首先要了解特定类别的游戏数量
更改行
$query2 = mysql_query("SELECT * FROM Games WHERE category = '$code' ");
到
$sql="SELECT * FROM Games WHERE category = '$code' ";
$query_count=mysql_query($sql);
在其后添加以下内容
$per_page =30;//define how many games for a page
$count = mysql_num_rows($query_count);
$pages = ceil($count/$per_page);
if($_GET['page']==""){
$page="1";
}else{
$page=$_GET['page'];
}
$start = ($page - 1) * $per_page;
$sql = $sql." LIMIT $start,$per_page";
$query2=mysql_query($sql);
然后显示您想要的页数
<ul id="pagination">
<?php
//Show page links
for ($i = 1; $i <= $pages; $i++)
{?>
<li id="<?php echo $i;?>"><a href="linktoyourfile?c=<?php echo $c;?>&page=<?php echo $i;?>"><?php echo $i;?></a></li>
<?php
}
?>
</ul>
使用CSS进行分页这样就可以了解
答案 1 :(得分：0)
initialize(button,R.id.button)
答案 2 :(得分：0)
Pagiantion, it is working simple and easy
<?php
$sql = "SELECT COUNT(id) FROM contact_info";
$rs_result = $conn->query($sql);
$row = mysqli_fetch_row($rs_result);
$total_records = $row[0];
echo $total_records;
$previous = 1;
$total_pages = ceil($total_records / $limit);
$next = $_GET["page"] + 1;
$previous = $_GET["page"] - 1;
$pagLink = "<span>";
if($previous ==0)
{
$prev = "<a href='javascript:void(0);' >Previous</a>";
}
else
{
$prev = "<a href='http://homeacresfinefurniture.com/all-queries.php?page=".$previous."' style='color:black;'>Previous</a>";
};
echo $prev;
"</span><div class='pagination'>";
for ($i=1; $i<=$total_pages; $i++)
{
$pagLink .= "<a href='http://homeacresfinefurniture.com/all-queries.php?page=".$i."'>".$i."</a>";
};
echo $pagLink;
$nex = "<span><a href='http://homeacresfinefurniture.com/all-queries.php?page=".$next."' style='color:black;'>Next</a></span>";
echo $nex;
";
</div>";
?>
从数据库获取所有数据。
$limit = 1;
if (isset($_GET["page"]))
{
$page = $_GET["page"];
}
else
{
$page=1;
}
$start_from = ($page-1) * $limit;
$sql = "SELECT * FROM contact_info ORDER BY id desc LIMIT $start_from , $limit";
答案 3 :(得分：-1)
//此代码可以根据您的要求进行定制 //通读代码注释以了解更多详细信息
访问 https://www.thewebblinders.in/programming/article/php-how-to-create-pagination-links-6022下载 PaginationLinks.php
<?php
include './PaginationLinks.php';
class DemoPagination
{
/**
*
* @param number $requestedPage - current request page number
* @param number $totalResults - total number of results , this value may come from a database
* @param number $nearbyLinks - specifies how many pagination links to be displayed
* @param number $numberOfResultsPerPage - number of results you want to display for each page
* @param string $linksFormat - specifies how pagination links should be displayed (HTML string)
* @param string $currentPageLinkFormat - specifies how current page link should be displayed (HTML string - you could use this to highlight current page from the rest of the links)
*/
public function getPagination(
$requestedPage,
$totalResults,
$nearbyLinks = 5,
$numberOfResultsPerPage=5,
$linksFormat = '<a href="?page=%d">%d</a>',
$currentPageLinkFormat = '<a class="currentPage" href="#">%d</a>') {
$requestedPage=$this->validatePageNumber($requestedPage,$totalResults,$numberOfResultsPerPage);
return PaginationLinks::create(
$requestedPage,
$this->getTotalPages($totalResults,$numberOfResultsPerPage),
$nearbyLinks,
$linksFormat,
$currentPageLinkFormat
);
}
/*
If the requested page number is not in available page numbers range
or
if page number is not set or empty
we will set page number to 1 (1st page)
*/
public function validatePageNumber($requestedPage,$totalResults,$numberOfResultsPerPage)
{
try{
return (!isset($requestedPage) || empty($requestedPage) || !($this->isPositiveInteger($requestedPage)) || (ceil($totalResults / $numberOfResultsPerPage) < $requestedPage)) ? 1 : $requestedPage;
}
catch(Exception $e){
return 1;
}
}
/**
* Returns total pages that can be created based on number of results and number of results per page
*/
public function getTotalPages($totalResults,$numberOfResultsPerPage){
return ceil($totalResults/$numberOfResultsPerPage);
}
// Used to make sure the requested page is positive
public function isPositiveInteger($val)
{
$filter_options = array(
'options' => array('min_range' => 0),
);
return filter_var($val, FILTER_VALIDATE_INT, $filter_options);
}
}
$dp=new DemoPagination();
echo $dp->getPagination(2,45); // USAGE
您可以在此处找到更多有关如何使用上述代码的示例 https://www.thewebblinders.in/programming/article/php-how-to-create-pagination-links-6022