php结合js实现点击超链接执行删除确认操作,js超链接
php结合js实现点击超链接执行删除确认操作,js超链接
如题,本次是要实现点击超链接实现执行js代码,并确认是否删除数据库数据,采用php。
首先链接数据库,查询数据库数据:
复制代码 代码如下:
$dbms='mysql'; //数据库类型 ,对于开发者来说,使用不同的数据库,只要改这个,不用记住那么多的函数
$host='localhost'; //数据库主机名
$dbName='db_database19'; //使用的数据库
$user='root'; //数据库连接用户名
$pass='root'; //对应的密码
$dsn="$dbms:host=$host;dbname=$dbName";
try {
$pdo = new PDO($dsn, $user, $pass); //初始化一个PDO对象,就是创建了数据库连接对象$pdo
$query="select * from tb_pdo_mysql"; //定义SQL语句
$result=$pdo->prepare($query); //准备查询语句
$result->execute(); //执行查询语句,并返回结果集
while($res=$result->fetch(PDO::FETCH_ASSOC)){ //while循环输出查询结果集,并且设置结果集的为关联索引
?>
}
} catch (PDOException $e) {
die ("Error!: " . $e->getMessage() . "
");
}
?>
在超链接删除处调用一javascript方法,传递记录id,js方法为:
复制代码 代码如下:
<script><br />
function del(_id) {<br />
if (confirm("确认删除"))<br />
{<br />
window.location.href="index.php?conn_id="+_id; //本页面刷新<br />
}<br />
}<br />
</script>
删除数据库记录代码:
复制代码 代码如下:
if(@$_GET['conn_id']!=""){
$dbms='mysql'; //数据库类型 ,对于开发者来说,使用不同的数据库,只要改这个,不用记住那么多的函数
$host='localhost'; //数据库主机名
$dbName='db_database19'; //使用的数据库
$user='root'; //数据库连接用户名
$pass='root'; //对应的密码
$dsn="$dbms:host=$host;dbname=$dbName";
try {
$pdo = new PDO($dsn, $user, $pass); //初始化一个PDO对象,就是创建了数据库连接对象$pdo
$pdo->setAttribute(PDO::ATTR_ERRMODE,PDO::ERRMODE_EXCEPTION);
$query="delete from tb_pdo_mysql where Id=:id";
$result=$pdo->prepare($query); //预准备语句
$result->bindParam(':id',$_GET['conn_id']); //绑定更新的数据
$result->execute();
} catch (PDOException $e) {
echo 'PDO Exception Caught.';
echo 'Error with the database:
';
echo 'SQL Query: '.$query;
echo '
';<br> echo "Error: " . $e->getMessage(). "<br>"; <br> echo "Code: " . $e->getCode(). "<br>";<br> echo "File: " . $e->getFile(). "<br>";<br> echo "Line: " . $e->getLine(). "<br>";<br> echo "Trace: " . $e->getTraceAsString(). "<br>";<br> echo '
}
}
?>
这段代码放在html页面body部分最开头处,最坏也要放在查询记录代码之前。
呵呵,这个简单啊,
删除
删除
点确定就直接跳到删除页去了。
点取消就原样不动。
php获取url参数
$id = $_GET[id];
要是还有什么不明白的,可以真通过百度Hi给我留言。
foreach遍历数据的时候 写上id值,然后delete.php页面执行删除操作。
要么你把连数据库的页面包含到 delete.php(不推荐)
要么 都写在一个页面,然后switch case 判断操作 接受id 然后执行
删除 这样比较推荐
delete.php页面里
连好数据库 switch($act=$_GET['act']){ case 'del': .........;break;case....}

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