我正在使用CodeIgniter表单验证库。
示例视图:
<html>
<head>
<title>My Form</title>
</head>
<body>
<?php echo validation_errors(); ?>
<?php echo form_open('form'); ?>
<h5>Username</h5>
<input type="text" name="username" value="" size="50" />
<h5>Password</h5>
<input type="text" name="password" value="" size="50" />
<h5>Password Confirm</h5>
<input type="text" name="passconf" value="" size="50" />
<h5>Email Address</h5>
<input type="text" name="email" value="" size="50" />
<div><input type="submit" value="Submit" /></div>
</form>
</body>
</html>
<?php
class Form extends CI_Controller {
function index()
{
$this->load->helper(array('form', 'url'));
$this->load->library('form_validation');
$this->form_validation->set_rules('username', 'Username', 'required');
$this->form_validation->set_rules('password', 'Password', 'required');
$this->form_validation->set_rules('passconf', 'Password Confirmation', 'required');
$this->form_validation->set_rules('email', 'Email', 'required');
if ($this->form_validation->run() == FALSE)
{
$this->load->view('myform');
}
else
{
$this->load->view('formsuccess');
}
}
}
?>
在这种情况下,当我填写用户名,密码,确认密码和电子邮件留空时,在提交表单后,收到错误的电子邮件要求。这很好,但在这种情况下我的用户名,密码,确认密码字段也丢失了数据,所以在发生任何错误时请帮助我。
不应该清除其他输入字段......
答案 0 :(得分:0)
最后我建立了解决方案:
我们必须在value参数中使用set_value(),如下所示:
<?php echo set_value('username'); ?>
答案 1 :(得分:0)
最好的方法是通过Ajax帖子使用它。不要混淆是否。
答案 2 :(得分:0)
<input type="text" name="username" value=<?php echo $this->input->post("username");?> size="50" />
答案 3 :(得分:0)
使用以下代码替换您的表单代码:
<form>
<h5>Username</h5>
<input type = "text" name = "username" value = "<?php if (validation_errors()) { echo set_value('username'); } ?>" size = "50" />
<h5>Password</h5>
<input type = "text" name = "password" value = "<?php if (validation_errors()) { echo set_value('password'); } ?>" size = "50" />
<h5>Password Confirm</h5>
<input type = "text" name = "passconf" value = "<?php if (validation_errors()) { echo set_value('passconf'); } ?>" size = "50" />
<h5>Email Address</h5>
<input type = "text" name = "email" value = "<?php if (validation_errors()) { echo set_value('email'); } ?>" size = "50" />
<div><input type = "submit" value = "Submit" /></div>
</form>
答案 4 :(得分:0)
使用:
<html>
<head>
<title>My Form</title>
</head>
<body>
<?php echo validation_errors(); ?>
<?php echo form_open('form'); ?>
<h5>Username</h5>
<input type="text" name="username" value="<?php echo set_value('username');?>" size="50" />
<h5>Password</h5>
<input type="text" name="password" value="<?php echo set_value('password');?>" size="50" />
<h5>Password Confirm</h5>
<input type="text" name="passconf" value="<?php echo set_value('passconf');?>" size="50" />
<h5>Email Address</h5>
<input type="text" name="email" value="<?php echo set_value('email');?>" size="50" />
<div><input type="submit" value="Submit" /></div>
</form>
</body>
</html>