分頁類的封裝如下:
page.php
<?php
//showPage(頁號,總頁數,分隔符)
function showPage($page,$totalPage,$sep=" "){
$url = $_SERVER ['PHP_SELF']; //獲取當前路徑
$index = ($page == 1) ? "首頁" : "<a href='{$url}?page=1'>首頁</a>";
$last = ($page == $totalPage) ? "尾頁" : "<a href='{$url}?page={$totalPage}'>尾頁</a>";
$prevPage=($page>=1)?$page-1:1;
$nextPage=($page>=$totalPage)?$totalPage:$page+1;
$prev = ($page == 1) ? "上一頁" : "<a href='{$url}?page={$prevPage}'>上一頁</a>";
$next = ($page == $totalPage) ? "下一頁" : "<a href='{$url}?page={$nextPage}'>下一頁</a>";
$str = "總共{$totalPage}頁/當前是第{$page}頁";
$p="";
for($i = 1; $i <= $totalPage; $i ++) {
//當前頁無連接
if ($page == $i) {
$p .= "[{$i}]";
} else {
$p .= "<a href='{$url}?page={$i}'>[{$i}]</a>";
}
}
$pageStr=$str.$sep . $index .$sep. $prev.$sep . $p.$sep . $next.$sep . $last;
return $pageStr; //返回分頁字符串
}
一個調用分頁類的例子
userlist.php
<?php
include "../mysql.php";
include "../page.php";
//連接數據庫
$conn=new Mysql();
//
$pageSize=2; //每頁顯示的記錄數
$sql="select * from user;";
$totalRows=$conn->getResultNum($sql); //總記錄數
$totalPage=ceil($totalRows/$pageSize); //總頁數
$page=isset($_REQUEST['page'])?(int)$_REQUEST['page']:1;//當前頁數
if($page<1||$page==null||!is_numeric($page)){
$page=1;
}
if($page>=$totalPage)$page=$totalPage;
$offset=($page-1)*$pageSize;
$sql="select * from user limit {$offset},{$pageSize}";
$result=$conn->sql($sql);
echo "<table style='text-align: center'>";
echo "<tr><td>用戶名</td><td>密碼</td><td>性別</td><td>郵箱</td></tr>";
foreach ($result as $k=>$v)
{
echo "<tr><td>{$v['name']}</td>";
echo "<td>"."{$v['password']}"."</td>";
echo "<td>{$v['sex']}</td>";
echo "<td>{$v['email']}</td></tr>";
}
echo "</table>";
echo showPage($page,$totalPage); //輸出頁碼鏈接
echo"<hr/>";
//關閉數據庫
$conn->close();
運行結果:
數據庫的封裝之前寫過,這裏不在贅述