<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
conn.php <?php /***** *数据库连接 *****/ $conn = @mysql_connect("localhost","root","root123"); if (!$conn){ die("连接数据库失败：" . mysql_error()); } mysql_select_db("test", $conn); //字符转换，读库 mysql_query("set character set 'gbk'"); //写库 mysql_query("set names 'gbk'"); ?> reg.php <?php if(!isset($_POST['submit'])){ exit('非法访问!'); } $username = $_POST['username']; $password = $_POST['password']; $email = $_POST['email']; //注册信息判断 if(!preg_match('/^[\w\x80-\xff]{3,15}$/', $username)){ exit('错误：用户名不符合规定。返回'); } if(strlen($password) < 6){ exit('错误：密码长度不符合规定。返回'); } if(!preg_match('/^w+([-+.]w+)@w+([-.]w+).w+([-.]w+)*$/', $email)){ exit('错误：电子邮箱格式错误。返回'); } //包含数据库连接文件 include('conn.php'); //检测用户名是否已经存在 $check_query = mysql_query("select uid from user where username='$username' limit 1"); if(mysql_fetch_array($check_query)){ echo '错误：用户名 ',$username,' 已存在。返回'; exit; } //写入数据 $password = MD5($password); $regdate = time();