Codeignitor 404 Page Not Found in Signup form : Hi everyone I just created my sign up form with email verification but it's giving me error "`404 Page Not Found`" when I click on Sign up button?
Here is my view named as sign_up:

        <!DOCTYPE html>
    <html lang="en">
    
        <head>
    
            <meta charset="utf-8">
            <meta http-equiv="X-UA-Compatible" content="IE=edge">
            <meta name="viewport" content="width=device-width, initial-scale=1">
            <title>Registeration</title>
            <!-- CSS -->
            <link rel="stylesheet" href="http://fonts.googleapis.com/css?family=Roboto:400,100,300,500">
            <link rel="stylesheet" href="<?php echo base_url();?>assets/bootstrap/css/bootstrap.min.css">
            <link rel="stylesheet" href="<?php echo base_url();?>assets/font-awesome/css/font-awesome.min.css">
    		<link rel="stylesheet" href="<?php echo base_url();?>assets/css/form-elements.css">
            <link rel="stylesheet" href="<?php echo base_url();?>assets/css/style.css">
    
            <!-- HTML5 Shim and Respond.js IE8 support of HTML5 elements and media queries -->
            <!-- WARNING: Respond.js doesn't work if you view the page via file:// -->
            <!--[if lt IE 9]>
                <script src="https://oss.maxcdn.com/libs/html5shiv/3.7.0/html5shiv.js"></script>
                <script src="https://oss.maxcdn.com/libs/respond.js/1.4.2/respond.min.js"></script>
            <![endif]-->
    
            <!-- Favicon and touch icons -->
          
            <link rel="apple-touch-icon-precomposed" sizes="144x144" href="<?php echo base_url();?>assets/ico/apple-touch-icon-144-precomposed.png">
            <link rel="apple-touch-icon-precomposed" sizes="114x114" href="<?php echo base_url();?>assets/ico/apple-touch-icon-114-precomposed.png">
            <link rel="apple-touch-icon-precomposed" sizes="72x72" href="<?php echo base_url();?>assets/ico/apple-touch-icon-72-precomposed.png">
            <link rel="apple-touch-icon-precomposed" href="<?php echo base_url();?>assets/ico/apple-touch-icon-57-precomposed.png">
    
        </head>
    
        <body>
    
    		<!-- Top menu -->
    		<nav class="navbar navbar-inverse navbar-no-bg" role="navigation">
    			<div class="container">
    				<div class="navbar-header">
    					<button type="button" class="navbar-toggle collapsed" data-toggle="collapse" data-target="#top-navbar-1">
    						<span class="sr-only">Toggle navigation</span>
    						<span class="icon-bar"></span>
    						<span class="icon-bar"></span>
    						<span class="icon-bar"></span>
    					</button>
    					<!--<a class="navbar-brand" href="index.html">Bootstrap Registration Form Template</a>-->
    				</div>
    				<!-- Collect the nav links, forms, and other content for toggling -->
    				<div class="collapse navbar-collapse" id="top-navbar-1">
    					<ul class="nav navbar-nav navbar-right">
    						<li>
    							<span class="li-text">
    								Put some information
    							</span> 
    							<!--<a href="#"><strong>links</strong></a> -->
    							<span class="li-text">
    								here to get access: 
    							</span> 
    							<span class="li-social">
    								<a href="#"><i class="fa fa-facebook"></i></a> 
    								<a href="#"><i class="fa fa-twitter"></i></a> 
    								<a href="#"><i class="fa fa-envelope"></i></a> 
    								<a href="#"><i class="fa fa-skype"></i></a>
    							</span>
    						</li>
    					</ul>
    				</div>
    			</div>
    		</nav>
    
            <!-- Top content -->
            <div class="top-content">
            	
                <div class="inner-bg">
                    <div class="container">
                        <div class="row">
                            <div class="col-sm-7 text">
                                <h1><strong>Register</strong> Here</h1>
                                <div class="description">
                                	<div class="row">
       
    </div>
                                </div>
                                <div class="top-big-link">
                                	<!--<a class="btn btn-link-1" href="#">Button 1</a>
                                	<a class="btn btn-link-2" href="#">Button 2</a>-->
                                </div>
                            </div>
                            <div class="col-sm-5 form-box">
                            	<div class="form-top">
                            		<div class="form-top-left">
                            			<h3>Sign up now</h3>
                                		<p>Fill in the form below to get instant access:</p>
                            		</div>
                            		<div class="form-top-right">
                            			<i class="fa fa-pencil"></i>
                            		</div>
                                </div>
                                <div class="form-bottom">
                                    <?php $attributes = array("name" => "registrationform");
                    echo form_open("Register/reg", $attributes);?>
    			                    <form role="form" action="" method="post" class="registration-form">
    			                    	<div class="form-group">
    			                    		<label class="sr-only" for="form-first-name">Full Name</label>
    			                        	<input type="text" name="name"  value="<?php echo set_value('name'); ?>" placeholder="Full Name..." class="form-first-name form-control" id="name" required>
                                             <?php echo form_error('name'); ?></span>
    			                        </div>
    			                        <div class="form-group">
    			                        	<label class="sr-only" for="form-email">Email</label>
    			                        	<input type="text" name="email"  value="<?php echo set_value('email'); ?>" placeholder="Email..." class="form-email form-control" id="email" required>
                                             <span class="text-danger">
                                              <span class="text-danger"><?php echo form_error('email'); ?></span>
    			                        </div>
                                        <div class="form-group">
    			                        	<label class="sr-only" for="form-last-name">Password</label>
    			                        	<input type="password" name="password" placeholder="Password..." class="form-last-name form-control" id="password" required>
                                          <span class="text-danger"><?php echo form_error('password'); ?></span> 
    			                        </div>
                                          <div class="form-group">
    			                        	<label class="sr-only" for="form-last-name">Confirm Password</label>
    			                        	<input type="password" name="password" placeholder="Confirm Password..." class="form-last-name form-control" id="cpassword" required>
                                             <span class="text-danger"><?php echo form_error('cpassword'); ?></span> 
    			                        </div>
    			                        <button type="submit" class="btn">Sign me up!</button>
                                         <button type="reset" class="btn">Cancel!</button>
    			                   <?php echo form_close(); ?>
                                   <?php echo $this->session->flashdata('msg'); ?>
    		                    </div>
                            </div>
                        </div>
                    </div>
                </div>
                
            </div>
    
    
            <!-- Javascript -->
            <script src="<?php echo base_url();?>assets/js/jquery-1.11.1.min.js"></script>
            <script src="<?php echo base_url();?>assets/bootstrap/js/bootstrap.min.js"></script>
            <script src="<?php echo base_url();?>assets/js/jquery.backstretch.min.js"></script>
            <script src="<?php echo base_url();?>assets/js/retina-1.1.0.min.js"></script>
            <script src="<?php echo base_url();?>assets/js/scripts.js"></script>
            
            <!--[if lt IE 10]>
                <script src="assets/js/placeholder.js"></script>
            <![endif]-->
    
        </body>
    
    </html>

here is controller named as Register:

 

       <?php
    class Register extends CI_Controller
    {
    
        function index()
        {
            $this->reg();
    		
        }
    
        function reg()
        {
            //set validation rules
            $this->form_validation->set_rules('name', 'Full Name', 'trim|required|alpha|min_length[3]|max_length[30]|xss_clean');
            $this->form_validation->set_rules('email', 'Email', 'trim|required|valid_email|is_unique[users.email]');
            $this->form_validation->set_rules('password', 'Password', 'trim|required|matches[cpassword]|md5');
            $this->form_validation->set_rules('cpassword', 'Confirm Password', 'trim|required');
            $this->load->view('Seller/login');
            //validate form input
            if ($this->form_validation->run() == FALSE)
            {
                // fails
                $this->load->view('sign_up');
            }
            else
            {
                //insert the user registration details into database
                $data = array(
                    'name' => $this->input->post('name'),
                    'email' => $this->input->post('email'),
                    'password' => $this->input->post('password')
                );
                
                // insert form data into database
                if ($this->Seller_model->insertUser($data))
                {
                    // send email
                    if ($this->Seller_model->sendEmail($this->input->post('email')))
                    {
                        // successfully sent mail
                        $this->session->set_flashdata('msg','<div class="alert alert-success text-center">You are Successfully Registered! Please confirm the mail sent to your Email-ID!!!</div>');
                        redirect('Register/reg');
                    }
                    else
                    {
                        // error
                        $this->session->set_flashdata('msg','<div class="alert alert-danger text-center">Oops! Error.  Please try again later!!!</div>');
                        redirect('Register/reg');
                    }
                }
                else
                {
                    // error
                    $this->session->set_flashdata('msg','<div class="alert alert-danger text-center">Oops! Error.  Please try again later!!!</div>');
                    redirect('Register/reg');
                }
            }
        }
        
        function verify($hash=NULL)
        {
            if ($this->Seller_model->verifyEmailID($hash))
            {
                $this->session->set_flashdata('verify_msg','<div class="alert alert-success text-center">Your Email Address is successfully verified! Please login to access your account!</div>');
                redirect('Register/reg');
            }
            else
            {
                $this->session->set_flashdata('verify_msg','<div class="alert alert-danger text-center">Sorry! There is error verifying your Email Address!</div>');
                redirect('Register/reg');
            }
        }
    }
    ?>

here is model named Seller_model:

  

      <?php
    class Admin_model extends CI_Model{
    function __construct()
        {
            // Call the Model constructor
            parent::__construct();
        }
        
        //insert into user table
        function insertUser($data)
        {
            return $this->db->insert('users', $data);
        }
        
        //send verification email to user's email id
        function sendEmail($to_email)
        {
            $from_email = 'team@abc.com'; //change this to yours
            $subject = 'Verify Your Email Address';
            $message = 'Dear User,<br /><br />Please click on the below activation link to verify your email address.<br /><br /> anywebsite/user/verify/' . md5($to_email) . '<br /><br /><br />Thanks<br />` `Mydomain Team';
            
            //configure email settings
            $config['protocol'] = 'smtp';
            $config['smtp_host'] = 'ssl://smtp.mydomain.com'; //smtp host name
            $config['smtp_port'] = '465'; //smtp port number
            $config['smtp_user'] = $from_email;
            $config['smtp_pass'] = '********'; //$from_email password
            $config['mailtype'] = 'html';
            $config['charset'] = 'iso-8859-1';
            $config['wordwrap'] = TRUE;
            $config['newline'] = "\r\n"; //use double quotes
            $this->email->initialize($config);
            
            //send mail
            $this->email->from($from_email, 'Mydomain');
            $this->email->to($to_email);
            $this->email->subject($subject);
            $this->email->message($message);
            return $this->email->send();
        }
        
        //activate user account
        function verifyEmailID($key)
        {
            $data = array('status' => 1);
            $this->db->where('md5(email)', $key);
            return $this->db->update('user', $data);
        }
    	}?>

