$user_id = htmlspecialchars(trim($user_id)); include "lib.html"; $user_id = trim($user_id); $connect=dbconn(); $check=mysql_fetch_array(mysql_query("select count(*) from $member_table where user_id='$user_id'")); mysql_close($connect); head(); ?>
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if($check[0]) echo "$user_id是已注册的ID 请选择其它的用户名."; else echo"$user_id可以使用"; ?> |