Question

html下拉列表方式的用户名，如何实现记住用户名和密码功能？？后台是php，请大仙们指教

Answer 1

用COOKIE. 看看下面的对你有帮助没
remember.php
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<form id="form1" name="form1" method="post" action="check_remember.php">
<table width="300" border="1" align="center" cellpadding="0" cellspacing="0">
<thead>
<tr>
<td colspan="2" align="center"><b>记住用户名和密码</b></td>
</tr>
</thead>
<tr align="center">
<td>用 户 名：</td>
<td><input type="text" value="<?php echo $_COOKIE['name'];?>" name="name"></td>
</tr>
<tr align="center">
<td>密码：</td>
<td><input type="password" name="password" value="<?php echo $_COOKIE['password']?>"></td>
</tr>
<tr align="center">
<td>记住用户名和密码</td>
<td><?php if($_COOKIE['remember'] == 1){?><input type="checkbox" name="remember" value="1" checked><?php }else{($_COOKIE['remember'] == "")?><input type="checkbox" name="remember" value="1"><?php }?></td>
</tr>
<tr align="center">
<td colspan="2"><input type="submit" name="Submit" value="提交" /></td>
</tr>
</table>
</form>

check_remember.php
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<?php
$name = $_POST['name'];
$password = $_POST['password'];
$remember = $_POST['remember'];
if($remember == 1){
setcookie('name',$name,time()+3600);
setcookie('password',$password,time()+3600);
setcookie('remember',$remember,time()+3600);
}else{
setcookie('name',$name,time()-3600);
setcookie('password',$password,time()-3600);
setcookie('remember',$remember,time()-3600);
}
echo "<a href=\"remember.php\">返回</a>";
?>

追问

用户名input框type为text的我会，

用 户 名：

用户名为下拉框的，而且下拉框的数据还要从数据库获取，如果单纯将$_COOKIE['name']放在select标签里，无疑会挤占下拉框option的值，用select形式选择用户名登陆，如何记住用户名和密码呢？