<"SET NAMES UTF8";
  mysqli_query($conn,$sql);
  $pagecount = 3;
"htmlcode">

<"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：$count<br/>";
"1">
  <tr>
    <td>用户编号</td>
    <td>用户名</td>
    <td>密码</td>
    <td>邮箱</td>
    <td>电话</td>
    <td>操作</td>
  </tr>
<"
      <tr>
        <td>".$arr[$i]['uid']."</td>
        <td>".$arr[$i]['uname']."</td>
        <td>".$arr[$i]['upwd']."</td>
        <td>".$arr[$i]['email']."</td>
        <td>".$arr[$i]['phone']."</td>
        <td><a href='delete.php".$tmp."'>删除</a></td>
      </tr>
    ";
   }
"user.php" rel="external nofollow" >首页</a>
<a href="user.php" rel="external nofollow" >上页</a>
<a href="user.php" rel="external nofollow" >2</a>
<a href="user.php" rel="external nofollow" >3</a>
<a href="user.php" rel="external nofollow" >4</a>
<a href="user.php" rel="external nofollow" >5</a>
<a href="user.php" rel="external nofollow" >6</a>
<a href="user.php" rel="external nofollow" >下页</a>
<a href="user.php" rel="external nofollow" >尾页</a>
<span>第<"htmlcode">

<"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 % $pagecount == 0)
        Header("Location:user.php");
      if($uid % $pagecount == 1){
        $uid -= 1;
        Header("Location:user.php");
      }
      if($uid % $pagecount == 2){
        $uid -= 2;
        Header("Location:user.php");
      }
    }else{
      echo "要删除的用户不存在";
    }
  }
"_blank" href="https://www.jb51.net/Special/768.htm">php+mysqli数据库程序设计技巧总结》、《php+mysql数据库操作入门教程》、《php面向对象程序设计入门教程》、《PHP数组(Array)操作技巧大全》、《php字符串(string)用法总结》、《PHP网络编程技巧总结》及《php常见数据库操作技巧汇总》

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