作者:黄秋华1219 | 来源:互联网 | 2018-07-16 14:52
ec(2); 代码如下复制代码$uid$_request[uid];checkusername($uid);functioncheckusername(){ $title$uid; if(empty($title)) { returnfalse
代码如下 |
|
$uid = $_request['uid'];
checkusername($uid);
function checkusername()
{
$title = $uid;
if( empty( $title ) )
{
return false;
}
else
{
mysql教程_connect('localhost','root','root');
mysql_select_db('test');
mysql_query("set names 'gb2312'");
$sql = "select * from cn_user where username ='$title'";
$row = mysql_query($sql);
if( mysql_num_rows( $row ) )
{
echo '用户名己经存';
}
else
{
return '可以注册';
}
}
} |
/*
create table `test`.`cn_user` (
`id` int not null auto_increment ,
`username` varchar( 20 ) not null ,
`times` date null ,
primary key ( `id` )
) engine = myisam
插入数据
insert into `test`.`cn_user` (
`id` ,
`username` ,
`times`
)
values (
null , 'jimmy', null
), (
null , 'www.111cn.net', null
);
*/