1. <!DOCTYPE html>
    2. <html>
    3.     <head>
    4.         <meta charset="utf-8" />
    5.         <title></title>
    6.     </head>
    7.     <body>
    8.         <table style="text-align: left;" border="1">
    9.             <tr>
    10.                 <th>id</th>
    11.                 <th>名字</th>
    12.                 <th>年龄</th>
    13.                 <th>性别</th>
    14.                 <th>分类</th>
    15.             </tr>
    16.             <?php
    17.                 $get = $_GET['id'];
    18.                 echo $get;
    19.                 var_dump($get);
    20.                 //引用 admin1.php 文件，无需再次编写打开数据库的代码段
    21.                 require 'mysql.php';
    23.                 //sql语句
    24.                 $sql = "select * from article where id=$get";
    25.                 $retval = mysqli_query($conn, $sql);    //执行
    26.                 //不加判断会报错
    27.                 if (!$retval) {
    28.                   printf("Error: %s\n", mysqli_error($conn));
    29.                   exit();
    30.                 }
    31.                 $row=mysqli_fetch_array($retval);
    32.                 echo '<tr><td>'.$row['id'].'</td><td>'.$row['title'].'</td><td>'.$row['content'].'</td><td>'.$row['date'].'</td><td>'.$row['class'].'</td></tr>';
    33.                 mysqli_close($conn);
    34.             ?>
    35.         </table>
    36.     </body>
    37. </html>