Most of the developers will look for forgot password functionality, now
I will show you to create forgot password form in 2 easy steps. For this we need to create below files.

1) Forgotpassword.php(view)
2) User.php(controller)

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Now create above two files in your projects to get functionality work.



<div class="container">
     	<div class="row padding-top-btm">
    
  			<div class="col-md-4">
            	<div class="new-car-con">

<form method="post" action="doforget" role="form" >
<div class="form-group">
<?php if($this->session->flashdata('message')) {?>
 <label><span style="color: #CC6633"><?php echo $this->session->flashdata('message');?><span></label>
<?php }?>

</div>
<h4>Forget pasword</h4>
<div class="form-group">
    <label for="txtLoginid">Email Id</label>
     <input name="emailid" type="email" size="25" id="emailid" placeholder="Enter email" class="form-control" value="<?php echo set_value('emailid');?>" />
     <span style="color:red"><?php echo form_error('emailid');?></span>
     </div>
      
  
  <button type="submit" class="btn btn-default">Submit</button>
</form>
</div></div>
</div>
</div>

Now create controller file as below.
[sociallocker id=”3592″] 

<?php

class User extends CI_Controller
{
public function __construct() {
parent::__construct();
}
public function display_doforget()
	{
	   $data="";
	   $this->load->view('user/forgetpassword',$data);
	}
	public function doforget()
	{
	    $this->load->helper('url');
		$email= $this->input->post('emailid');
		$this->load->library('form_validation');
		$this->form_validation->set_rules('emailid','emailid','required|xss_clean|trim');
		 if ($this->form_validation->run() == FALSE)
			{
	
				$this->load->view('user/forgetpassword');
	 
			}
			else
			{
		$q = $this->db->query("select * from user where emailid='" . $email . "'");
        if ($q->num_rows > 0) {
            $r = $q->result();
            $user=$r[0];
			$this->load->helper('string');
			$password= random_string('alnum',6);
			$this->db->where('user_id', $user->user_id);
			$this->db->update('user',array('password'=>$password,'pass_encryption'=>MD5($password)));
			$this->load->library('email');
			$this->email->from('[email protected]', 'sampletest');
			$this->email->to($user->emailid); 	
			$this->email->subject('Password reset');
			$this->email->message('You have requested the new password, Here is you new password:'. $password);	
			$this->email->send();
		    $this->session->set_flashdata('message','Password has been reset and has been sent to email');		
		   redirect('user/display_doforget');
		   }
		   }
	}
}

[/sociallocker]
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Thanks for reading this article.