我希望我的注册页面中的验证码安全，但是当我用错误的验证码填写表格并提交表格时。问题是在我的注册页面中查看两个页面。并用正确的验证码再次填写此表格，但他们再次出现同样的问题并显示不正确的验证码。
控制器
public function user_signup($data = NULL){
$this->load->library('form_validation');
$this->recaptcha->recaptcha_check_answer($_SERVER['REMOTE_ADDR'],$this->input->post('recaptcha_challenge_field'),$this->input->post('recaptcha_response_field'));
$this->form_validation->set_rules('Username', 'Username', 'required|trim|is_unique[users.Username]');
$this->form_validation->set_rules('First_name', 'First Name', 'required|trim');
$this->form_validation->set_rules('Last_name', 'Last Name', 'required|trim');
$this->form_validation->set_rules('Email', 'Email', 'required|trim|valid_email');
$this->form_validation->set_rules('Password', 'Password', 'required|trim|md5');
$this->form_validation->set_rules('Conf_password', 'Confirm Password', 'required|trim|matches[Password]');
$this->form_validation->set_message('is_unique', 'Username already exists.');
if($this->form_validation->run() && $this->recaptcha->getIsValid()){
//Call to recaptcha to get the data validation set within the class.
$form_data = array();
$form_data['Username'] = $this->input->post('Username');
$form_data['First_name'] = $this->input->post('First_name');
$form_data['Last_name'] = $this->input->post('Last_name');
$form_data['Email'] = $this->input->post('Email');
$form_data['Password'] = $this->input->post('Password');
$form_data['Conf_password'] = $this->input->post('Conf_password');
$this->load->model('User');
$this->User->sign_up($form_data);
$data['msg']= "Account Created Sucessfuly";
}else{
if(!$this->recaptcha->getIsValid()){
$this->session->set_flashdata('error','incorrect captcha');
}
}
redirect("Users/signup", $data);
}
模型
public function sign_up($form_data){
$this->db->insert('users', $form_data);
}
看法
<?php
//$val = NULL;
if(isset($results->id)){
$val = "Update";
$action = "Users/user_update/".$results->id;
}else{
$val= "Register";
$action = "Users/user_signup";
}; ?>
<?php echo form_open($action); ?>
<?php echo form_input(array('name'=>'Username', 'class'=>'input-xlarge', 'type'=>'text', 'placeholder'=>'Username', 'required' => 'required', 'value'=>$u)); ?>
<?php echo form_error('Username', '<div class="alert alert-error">', '</div>'); ?>
<?php echo form_input(array('name'=>'First_name', 'class'=>'input-xlarge', 'type'=>'text', 'placeholder'=>'First Name', 'required' => 'required', 'value'=>$f)); ?>
<?php echo form_error('First_name', '<div class="alert alert-error">', '</div>'); ?>
<?php echo form_input(array('name'=>'Last_name', 'class'=>'input-xlarge', 'type'=>'text', 'placeholder'=>'Last Name', 'required' => 'required', 'value'=>$l)); ?>
<?php echo form_error('Last_name', '<div class="alert alert-error">', '</div>'); ?>
<?php echo form_input(array('name'=>'Email', 'class'=>'input-xlarge', 'type'=>'text', 'placeholder'=>'Email', 'required' => 'required', 'value'=>$e)); ?>
<?php echo form_error('Email', '<div class="alert alert-error">', '</div>'); ?>
<?php echo form_input(array('name'=>'Password', 'class'=>'input-xlarge', 'type'=>'password', 'placeholder'=>'Password')); ?>
<?php echo form_error('Password', '<div class="alert alert-error">', '</div>'); ?>
<?php echo form_input(array('name'=>'Conf_password', 'class'=>'input-xlarge', 'type'=>'password', 'placeholder'=>'Confirm Password')); ?>
<?php echo form_error('Conf_password', '<div class="alert alert-error">', '</div>'); ?>
<?php if(!isset($results->id)){echo $recaptcha_html;} ?>
<?php if ($this->session->flashdata('error') !== FALSE) { echo '<div class="alert alert-error">'.$this->session->flashdata('error').'</div>'; } ?>
<div class="login-actions">
<span><input type="checkbox"> <span class="remember">I have read & agree</span></span>
<span><?php echo form_submit(array('value'=>$val, 'class'=>'btn btn-large btn-warning pull-right', 'type'=>'submit')); ?></span>
</div>
<?php echo form_close(); ?>