php实现的后台表格分页功能示例
2018-09-07 13:20
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:$count<br/>; ?> <table border=1> <tr> <td>用户编号</td> <td>用户名</td> <td>密码</td> <td>邮箱</td> <td>电话</td> <td>操作</td> </tr> <?php for($i=0;$i<count($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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