Signup

public function register()
    {
        $fname    = htmlentities($this->input->post('fname'));
        $lname    = htmlentities($this->input->post('lname'));
        $email    = htmlentities($this->input->post('email'));
        $password = $this->input->post('password');
        $type     = (int) $this->input->post('type');
        $role = $type ? 10 : 20;
        $now = date('Y-m-d h:i:s');
        $numbers = range(1,999);
        $username = $fname.$lname;
        $email_status = $this->business_model->select_num_rows('user',
                        ['email' => $email]);
        if($email_status > 0 ){
            # if this email already exist
             echo json_encode(array('condition' => "error", 'data' => 'This email already associated with another account..')); exit;
        }
        $users = $this->business_model->search_all_data('user ',['username' =>
        $username]);
        foreach ($users as $user){
        $n = (int)substr($user['username'],strlen($username));
         if($n) unset($numbers[array_search($n,$numbers)]);
        }
        $suffix = array_shift($numbers);
        $username .= $suffix;
         if(!empty($email) and (!empty($password))){
            $password_hash =  password_hash($password, PASSWORD_DEFAULT);
            $user_data = array('username' =>
            $username,'password_hash' =>$password_hash, 'email' =>$email,
            'created' =>$now,'status' =>0 ,'role' =>$role);
            $resp_id = $this->business_model->insert_data("user",$user_data,'yes');
            if($resp_id){
            $person_data = array('user_id' =>$resp_id,'first_name' => $fname ,'last_name' =>$lname);
            $resp_id = $this->business_model->insert_data("person",$person_data);
            echo json_encode(array('condition' => "success", 'data' => 'Account has been created please verify your email.')); exit;
            }else{
            echo json_encode(array('condition' => "error", 'data' => 'Something went wrong.')); exit;
            }
        }else{
            # if user Directly try to access the registration controller
            redirect('Welcome');
        }

    }