PHP和MySQL分页

Question

我有一个MySQL查询

SELECT * FROM 'redirect'
WHERE 'user_id'= \''.$_SESSION['user_id'].' \' 
ORDER BY 'timestamp'`

我想每页分页10个结果.我该怎么做？

Answer 1

这是一个很好的起点:

<?php

// insert your mysql connection code here

$perPage = 10;
$page = (isset($_GET['page'])) ? (int)$_GET['page'] : 1;
$startAt = $perPage * ($page - 1);

$query = "SELECT COUNT(*) as total FROM redirect
WHERE user_id = '".$_SESSION['user_id']."'";
$r = mysql_fetch_assoc(mysql_query($query));

$totalPages = ceil($r['total'] / $perPage);

$links = "";
for ($i = 1; $i <= $totalPages; $i++) {
  $links .= ($i != $page ) 
            ? "<a href='index.php?page=$i'>Page $i</a> "
            : "$page ";
}


$r = mysql_query($query);

$query = "SELECT * FROM 'redirect'
WHERE 'user_id'= \''.$_SESSION['user_id'].' \' 
ORDER BY 'timestamp' LIMIT $startAt, $perPage";

$r = mysql_query($query);

// display results here the way you want

echo $links; // show links to other pages

Answer 2

使用LIMIT。

SELECT *
FROM redirect
WHERE user_id = '35251' 
ORDER BY timestamp
LIMIT 40, 10

40 是要跳过的记录数，10 是要显示的记录数。

您的 PHP 也存在一些问题。您使用反引号（而不是单引号）将表名和列名括起来。并且您不应该使用字符串连接来构建您的查询。