token generate for forgot password - codeigniter

Question

I create forgot password module.
MY Question: How to generate token for forgot password using codeigniter. i used codeignitor framework. below code
Controller:
class User extends CI_Controller {
public function __construct() {
parent::__construct();
$this->load->library('form_validation');
$this->load->model('user_model');
$this->load->library('session');
}
public function forgotpassword() {
$this->form_validation->set_rules('email', 'Email Address', 'required|valid_emails');
if ($this->form_validation->run() == FALSE) {
$data = array(
'page_title' => 'Forgot Password',
'page_name' => 'user/forgotpassword'
);
$this->load->view('user_template', $data);
} else {
$result = $this->user_model->forgotpassword($_POST);
if (!empty($result)) {
echo '<h1 class="text-center">Thank You</h1>';
}
}
}
}
Model:
class User_model extends CI_Model {
function __construct() {
parent::__construct();
}
public function forgotpassword($data) {
return $this->db->get_where('user', array('email' => $data['email']))->row_array();
}
}
View:
<section class="container">
<section class="login-form">
<?php echo form_open('User/forgotpassword'); ?>
<section>
<h2><span style="color: red">For</span>The<span style="color: red">Love</span>Of<span style="color: red">Food</span>Trucks</h2>
</section>
<div class="text-danger">
<?php echo validation_errors('<li>', '</li>'); ?>
</div>
<input type="hidden" name="token" value=" <?php echo sha1(date("Y/m/d h:i:sa")); ?>">
<label>Email</label>
<input type="text" name="email" id="email" class="form-control" placeholder="Email Address" value="<?php echo set_value('email'); ?>"required=""/>
<br/>
<button type="submit" name="submit" class="btn btn-block btn-danger">Submit</button>
<?php echo form_close(); ?>
</section>
</section>
Please Help me..................................................................................................

Answer 1

There are many ways to generate a token using PHP here is one of them:
$forgotten_code = sha1(uniqid(rand()));
Please note that this is just the answer to your question on 'how to generate the code' but the process involving the recover of the password is more complicated then you might think.
I can advise you to use a class such as ion auth 2 which is written to be used with Codeigniter and you can findit here:
https://github.com/benedmunds/CodeIgniter-Ion-Auth
This class will cover all the user authentication, login, password recovery and much more:
You do not need to reinvent the weel
By the way you have a typo here:
'Email Address', 'required|valid_emails'
You need to correct it like this:
'Email Address', 'required|valid_email'