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session_start();
header("Content-type:text/html;charset=utf-8");
$con = mysqli_connect("localhost","root","","login");
if(!$con)
{
echo mysqli_error();
}
function _get($str){
$val = !empty($_POST[$str]) ? $_POST[$str] : null;
return $val;
}
$username=_get("username");
$password=_get("password");
//查询
$sql="select * from `login` where `user`='".$username."' and `password`='".$password."'";
$set=mysqli_query($con,$sql);
$result=mysqli_fetch_array($set);
//print_r($result);
if($result)
{
$_SESSION['login']=$username;
echo "";
}else{
echo "登录失败";
}
?>
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