我决定用mysqli代替mysql,我有一些错误,这是我第一次使用mysqli,我不知道错误是什么,有什么建议吗?be mysqli_result, null given in /home/u250000297/public_html/forum/system/db.php on line 45
Warning: mysqli_queryhome/u250000297/public_html/forum/system/db.php on line 3
variable: configdb in /Applications/XAMPP/xamppfiles/htdocs/practicesystem/add.php on line 14
$qry = mysqli_query($configdb,$check);
if($num_rows > 0){$email."'