php实现的后台表格分页功能示例


            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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