php+mysql删除指定编号员工信息的方法
这篇文章主要介绍了php+mysql删除指定编号员工信息的方法,涉及mysql数据库操作技巧,具有一定参考借鉴价值,需要的朋友可以参考下
本文实例讲述了php+mysql删除指定编号员工信息的方法。分享给大家供大家参考。具体分析如下:
利用php提交员工编号给mysql,然后由mysql把数据接受并利用delete进行数据删除操作了,这里就来给大家分享几个具体例子.
delete语句的示例:
复制代码 代码如下:
delete from friends where user_name = 'simaopig';
语法结构中,我们就可以看出,和 update 语法一样,我们是可以省略 where 子句的,不过这是一个很危险的行为,因为如果不指定 where 子句,delete 将删除表中所有的记录,而且是立即删除.
1.删除指定编号的员工信息,代码如下:
复制代码 代码如下:
编号 | 姓名 | 年龄 |
---|---|---|
".($k)." | ".$v['name']." | ".$v['age']." |
2.员工信息批量删除例子
关键技术:本实例的关键点是while()循环语句的灵活运用,根据提交的参数值,执行while()循环语句,在循环体重执行删除操作,完成数据的循环删除操作.
设计过程:
(1)创建PHP脚本文件,首先,连接MySQL数据库服务器,连接MySQL中名称为db_while的数据库,并设置页面的编码格式,然后,定义循环变量变量$a和$b,将第1层while循环中的循环条件设置为$b
复制代码 代码如下:
if($_POST[sub]){ //通过POST方式获取参数
$conn=mysql_connect("localhost","root","111"); //连接mysql数据库
mysql_select_db("db_while",$conn); //连接数据库
mysql_query("SET NAMES GBK");//定义编码格式
$a=$_POST[te];//接收文本框参数
$b=0;//定义变量
while($b
$rs=mysql_query("select * from tb_while");//执行查询操作
while($rst=mysql_fetch_array($rs)){//将查询结果保存在数组中
$sql="delete * from tb_while where id=$b"; //sql语句
mysql_query($sql);//执行删除操作
echo"姓名为".$rst[name]."的员工已被删除
";//输出被删除的员工姓名
$b++
}
}
}
?>
(2)将该文件存储于MR 2 66文件夹下,命名为index.php.
希望本文所述对大家的php+mysql程序设计有所帮助。

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