本款删除数据代码是一款根据用户url地址栏传过来的参数,再去mysql数据库中执行删除操作,PHP实例代码如下:
- $host = 'localhost';
- $user_name = 'root';
- $password = 'admin';
-
- $conn = mysql_connect($host,$user_name,$password);
- if(!$conn)
- {
- die('数据库连接失败:'.mysql_error());
- }
- mysql_select_db('test');
-
- $sql = 'select id,name,city,created_time from users';
-
- $result = mysql_query($sql) or die("<br/>error: <b>".mysql_error()."</b><br/>产生问题的sql:".$sql);
- ?>
- <html>
- <head>
- <title>13-12.php</title>
- <script language="网页特效">
-
- </script>
- </head>
- <center>
-
- <body>
- <table width="75%" border="0" cellpadding="0" cellspacing="1" bgcolor="#7b7b84">
- <tr bgcolor="#8bbcc7">
- <td height="33"><div align="center"><strong>用户id</strong></div></td>
- <td><div align="center"><strong>用户名称</strong></div></td>
- <td><div align="center"><strong>来自城市</strong></div></td>
- <td><div align="center"><strong>注册时间</strong></div></td>
- <td><div align="center"><strong>操作</strong></div></td>
- </tr>
-
- <?php
- if($num = mysql_num_rows($result))
- {
- while($row = mysql_fetch_array($result,mysql_assoc))
- {
- ?>
- <tr bgcolor="#ffffff">
- <td height="22" align="right"><?php echo $row['id']; ?> </td>
- <td height="22"> <?php echo $row['name']; ?> </td>
- <td height="22"> <?php echo $row['city']; ?> </td>
- <td height="22"> <?php echo $row['created_time']; ?> </td>
- <td height="22"> <a onclick="javascript:if(confirm('确定要删除用户信息吗?')) return true; else return false;" href="13-13.php?id=<?php echo $row['id']; ?>">删除</a> </td>
- </tr>
- <?php
- }
- }
- mysql_close($conn);
- ?>
-
- </table>
- </body>
- </center>
- </html>
-
- <?php
- if(!isset($_get['id']))
- {
- echo '参数错误!';
- exit;
- }
-
- $id = $_get['id'];
- if(emptyempty($id))
- {
- echo '用户id不能为空!';
- exit;
- }
-
- $host = 'localhost';
- $user_name = 'root';
- $password = 'admin';
-
- $conn = mysql_connect($host,$user_name,$password);
- if(!$conn)
- {
- die('数据库连接失败:'.mysql_error());
- }
- mysql_select_db('test');
-
-
- $sql = "select * from users where id=$id";
- $result = mysql_query($sql) or die("<br/>error: <b>".mysql_error()."</b><br/>sql:".$sql);
- if(!mysql_num_rows($result))
- {
- echo '用户id错误!';
- exit;
- }
-
-
- $sql = "delete from users where id=$id";
- mysql_query($sql) or die("<br/>error: <b>".mysql_error()."</b><br/>sql:".$sql);
- mysql_close($conn);
-
- echo '数据删除成功,返回<a href="13-12.php">13-12.php</a>查看数据';
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