Why does undefined index always appear? How to solve it?
手机用户1606464442
手机用户1606464442 2020-11-27 16:19:23
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include("connect/connect.php");
$xh=$_GET['xh'];
$sql="select xh,xm,xb,zymc from xsjbxxb where xh=".$xh;/lect host,user from user
$result=mysqli_query($conn,$sql);
while( $arr=mysqli_fetch_array($result) )
{
?>

      
}
?>

      
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手机用户1606464442
手机用户1606464442

reply all (1)
天蓬大人

Is the xh field the primary key?

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