本文实例讲述了php实现的后台表格分页功能。分享给大家供大家参考,具体如下:
?php
//init.php
$conn = mysqli_connect('127.0.0.1','root','','xz',3306);
$sql = "SET NAMES UTF8";
mysqli_query($conn,$sql);
$pagecount = 3;
?>
user.php:
?php
//用户管理
echo "用户管理br/>";
@$start = $_REQUEST['start'];
if($start === null || $start === " "){
die("start required");
}
require("init.php");
$sql = "SELECT * FROM xz_user LIMIT $start,$pagecount";
$sql1 = "SELECT uid FROM xz_user";
$result = mysqli_query($conn,$sql);
$result1 = mysqli_query($conn,$sql1);
if($result === false || $result1 === false) {
echo "执行失败";
}else {
//$rowcount = mysqli_affected_rows($conn);
$arr = mysqli_fetch_all($result,1);
$rowcount = count($arr);
echo "查询到的结果行数:" . $rowcount . "br/>";
//if($rowcount > 0){
$arr1 = mysqli_fetch_all($result1,1);
$count = count($arr1);
echo "总行数:$countbr/>";
?>
table border="1">
tr>
td>用户编号/td>
td>用户名/td>
td>密码/td>
td>邮箱/td>
td>电话/td>
td>操作/td>
/tr>
?php
for($i=0;$icount($arr);$i++){
$tmp = $arr[$i]['uid'];
echo "
tr>
td>".$arr[$i]['uid']."/td>
td>".$arr[$i]['uname']."/td>
td>".$arr[$i]['upwd']."/td>
td>".$arr[$i]['email']."/td>
td>".$arr[$i]['phone']."/td>
td>a href='delete.php?uid=".$tmp."'>删除/a>/td>
/tr>
";
}
?>
/table>
?php
}
?>
!-- 传值 AJAX可优化 -->
a href="user.php?start=0" rel="external nofollow" >首页/a>
a href="user.php?start=?php if($start>=3)echo $start-3; else echo $start; ?>" rel="external nofollow" >上页/a>
a href="user.php?start=3" rel="external nofollow" >2/a>
a href="user.php?start=6" rel="external nofollow" >3/a>
a href="user.php?start=9" rel="external nofollow" >4/a>
a href="user.php?start=12" rel="external nofollow" >5/a>
a href="user.php?start=15" rel="external nofollow" >6/a>
a href="user.php?start=?php echo $start+3; ?>" rel="external nofollow" >下页/a>
a href="user.php?start=?php if($count%3==1)echo $count-1; elseif($count%3==2) echo $count-2; elseif($count%3==0) echo $count-3; ?>" rel="external nofollow" >尾页/a>
span>第?php echo $start/$pagecount+1 ?>页|共?php $tmp=$count/$pagecount; $tmp1=(int)($count/$pagecount); if($tmp>$tmp1) echo $tmp1+1; else echo $tmp1; ?>页/span>
delete.php:
?php
//删除用户
echo "删除用户br/>";
@$uid = $_REQUEST['uid'];
if($uid === null || $uid === " "){ //这里注意,是||
die("uid required");
}
require('init.php');
$sql = "DELETE FROM xz_user WHERE uid='$uid'";
$sql1 = "UPDATE xz_user SET uid=uid-1 WHERE uid > '$uid'";
$result = mysqli_query($conn,$sql);
if($result === false){
echo "执行失败";
}else{
$count = mysqli_affected_rows($conn);
if($count > 0){
echo "用户删除成功";
$result1= mysqli_query($conn,$sql1);
if($result1 === false){
echo "重排序失败";
}else{
echo "重排序成功";
}
if($uid % $pagecount == 0)
Header("Location:user.php?start=$uid");
if($uid % $pagecount == 1){
$uid -= 1;
Header("Location:user.php?start=$uid");
}
if($uid % $pagecount == 2){
$uid -= 2;
Header("Location:user.php?start=$uid");
}
}else{
echo "要删除的用户不存在";
}
}
?>
注:
(1)用AJAX可以实现传值优化,提升性能,这里没有实现;
(2)下一页那边还没有一些bug,不能到最后一页停止,后续再实现吧。
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