<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>用户注册</title>
<link rel="stylesheet" type="text/css" href="css/register.css" />
<script type="text/javascript" src="js/ajax.js"></script>
<script type="text/javascript" src="js/check.js"></script>
</head>
<body>
<form action="register.php" method="post" name="frm1">
<div id="fm" class="ccdiv">
<br/>
<div id="div1" class="style1">用户注册</div>
<br/>
<div class="style2"><font color=red>*</font>用 户 名：<input type="text" name="username" id="username" class="ab" onblur="checkname();">
<span name="checkusername" id="checkusername"></span>
</div>
<br/> <div class="style2"><font color=red>*</font>密 码：<input type="password" name="password" id="password" class="ab" onblur="checkpassword();">
<span name="checkpassword" id="checkpassword"></span>
</div>
<br/> <div class="style2"><font color=red>*</font>重复密码：<input type="password" name="password2" id="password2" class="ab" onblur="checkpassword2();">
<span name="checkpassword2" id="checkpassword2"></span>
</div>
<br/> <div class="style2"><font color=red>*</font>邮 箱：<input type="text" name="email" id="email" class="ab" onblur="checkemail();">
<span id="checkemail" name="checkemail"></span>
</div>
<br/> <div class="style2"><font color="red">*</font>验 证 码：<img src="image/yanzheng.php" alt="看不清，点击换图片" id="img" onclick="this.src='image/yanzheng.php?'+Math.random();" style='cursor:pointer;'>
请输入：<input type="text" name="yanzheng" id="yanzheng" size="4" maxlength="4" onblur="checkyanzheng();">
<span name="checkyanzheng" id="checkyanzheng"></span>
</div>
<br/> <div class="style3"><input type="submit" name="sub" id="sub" value="注册">
<input type="reset" name="reset" id="reset" value="清空"> <a href="index.php">返回首页</a>
</div>
<br/>
<div class="style2">如果您已有帐号，请<a href="login.php">点击这里</a>进行登陆</div>
</div>
</form>
</body>
</html>
include("init.php");
if($_SERVER['REQUEST_METHOD'] == 'POST'){
//获取验证信息
$ckusername=@$_SESSION['ckusername'];
$ckpassword=@$_SESSION['ckpassword'];
$ckpassword2=@$_SESSION['ckpassword2'];
$ckemail=@$_SESSION['ckemail'];
$ckyanzheng=@$_SESSION['ckyanzheng'];
//获取页面的信息
$username=$_POST['username'];
$password=$_POST['password'];
$email=$_POST['email'];
$yanzheng=$_POST['yanzheng'];
$passwd=md5($password);
//如果所有验证为证通过的话
if($ckusername && $ckpassword && $ckpassword2 && $ckemail &&$ckyanzheng){
$ins_query="insert into guest_info(username,password,email) values('$username','$passwd','$email')";
$ins_info=$db->query($ins_query);
if($ins_info){
$_SESSION['username']=$username;
echo "<script>location='tiaozhuan.php';</script>";
}
else
echo "<script>alert('注册失败！')</script>";
}else{
echo "<script>alert('注册失败！')</script>";
}
}这是我的注册页面，各种验证也做好了，就是如果某一验证不通过的时候提交，就会弹出对话框“注册失败！”,原来用户输入的信息就会全部清掉，请问怎么在弹出对话框提示用户后还能保存信息
谢了
服务器端验证肯定就不保留信息了，你用JS验证不就好了，如果是要查询数据库的话，就用AJAX不就行了！～
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> <title>用户注册</title> <link rel="stylesheet" type="text/css" href="css/register.css" /> <script type="text/javascript" src="js/ajax.js"></script> <script type="text/javascript" src="js/check.js"></script> </head> <body> <form action="register.php" method="post" name="frm1"> <div id="fm" class="ccdiv"> <br/> <div id="div1" class="style1">用户注册</div> <br/> <div class="style2"><font color=red>*</font>用 户 名：<input type="text" name="username" value="<php? if (isset($_SESSION['ckusername'])) echo $_SESSION['ckusername'];>" id="username" class="ab" onblur="checkname();"> <span name="checkusername" id="checkusername"></span> </div> <br/> <div class="style2"><font color=red>*</font>密 码：<input type="password" name="password" id="password" class="ab" onblur="checkpassword();"> <span name="checkpassword" id="checkpassword"></span> </div> <br/> <div class="style2"><font color=red>*</font>重复密码：<input type="password" name="password2" id="password2" class="ab" onblur="checkpassword2();"> <span name="checkpassword2" id="checkpassword2"></span> </div> <br/> <div class="style2"><font color=red>*</font>邮 箱：<input type="text" name="email" id="email" class="ab" onblur="checkemail();"> <span id="checkemail" name="checkemail"></span> </div> <br/> <div class="style2"><font color="red">*</font>验 证 码：<img src="image/yanzheng.php" alt="看不清，点击换图片" id="img" onclick="this.src='image/yanzheng.php?'+Math.random();" style='cursor:pointer;'> 请输入：<input type="text" name="yanzheng" id="yanzheng" size="4" maxlength="4" onblur="checkyanzheng();"> <span name="checkyanzheng" id="checkyanzheng"></span> </div> <br/> <div class="style3"><input type="submit" name="sub" id="sub" value="注册"> <input type="reset" name="reset" id="reset" value="清空"> <a href="index.php">返回首页</a> </div> <br/> <div class="style2">如果您已有帐号，请<a href="login.php">点击这里</a>进行登陆</div> </div> </form> </body> </html>
..
..
..
register()
{
//ajax提交数据
//
return false;
}