Question

更新以包含完整代码。

我从数据库中提取记录，然后每页显示5条记录，如下所示：

$num_rec_per_page=5;

if (isset($_GET["page"])) { $page  = $_GET["page"]; } else { $page=1;   }; 

$start_from = ($page-1) * $num_rec_per_page; 
$school = $_REQUEST['school'];
$sql = "SELECT * FROM `data` WHERE `school` LIKE '%$school%'";
$rs_result = mysql_query($sql);
$total_records = mysql_num_rows($rs_result);  //count number of records
$total_pages = ceil($total_records / $num_rec_per_page); 

for ($i=1; $i<=$total_pages; $i++) { 
        echo "<a href='search.php?school=".urlencode($school)."&page=".$i."'>".$i."</a>";
};

这为每个页面提供了一个很长的列表：

12345678910111213141516171819202122232425262728293031323334353637383940414243444546474849505152535455

我想做的是：

<Prev 1 2 3 4....53 54 55 Next>

Answer 1

在LIMIT查询中使用OFFSET和SELECT条款来实施分页。

以下是参考资料：

PHP Limit Data Selections From MySQL

所以你的代码应该是这样的：

$num_rec_per_page = 5;

if(isset($_GET["page"])){ 
    $page  = $_GET["page"]; 
}else{ 
    $page=1;  
} 

$offset = ($page - 1) * $num_rec_per_page; 
$school = $_GET['school'];
$sql = "SELECT * FROM `data` WHERE `school` LIKE '%" . $school. "%' LIMIT 5 OFFSET " . $offset;
$rs_result = mysql_query($sql);
$total_records = mysql_num_rows($rs_result);  //count number of records
$total_pages = ceil($total_records / $num_rec_per_page); 

for ($i=1; $i<=$total_pages; $i++){ 
    if($i != 1){
        $prev_page = $i - 1;
        echo "<a href='search.php?school=".urlencode($school)."&page=" . $prev_page ."'>&lt;prev</a>";
    }
    echo " <a href='search.php?school=".urlencode($school)."&page=".$i."'>".$i."</a>";
    if($i != $total_pages){
        $next_prev = $i + 1;
        echo " <a href='search.php?school=".urlencode($school)."&page=" . $next_page ."'>next&gt;</a>";
    }
}

旁注：不要使用mysql_*函数，从PHP 5.5开始不推荐使用它们，并且在PHP 7.0中完全删除它们。请改用mysqli或pdo。 And this is why you shouldn't use mysql_* functions。

PHP分页截断页面列表

1 个答案: