不使用中间名（CodeIgniter）通过电子邮件发送重复和全名

Question

我试图在学校建立一个招生系统，我需要帮助 不要复制带有middlename的电子邮件和全名，但如果名称和姓氏相同，则可以添加，但使用中间名将不会继续添加学生。我更新学生时仍然处理相同的过程

function student($param1 = '', $param2 = '', $param3 = '')
{
    if ($this->session->userdata('admin_login') != 1)
        redirect('login', 'refresh');
    if ($param1 == 'create') {
        $data['name']        = $this->input->post('name');
        $data['mname']       = $this->input->post('mname');
        $data['lastname']    = $this->input->post('lastname');
        $data['birthday']    = $this->input->post('birthday');
        $data['sex']         = $this->input->post('sex');
        $data['address']     = $this->input->post('address');
        $data['phone']       = $this->input->post('phone');
        $data['email']       = $this->input->post('email');
        $data['password']    = md5($this->input->post('password')); 
        $data['father_name'] = $this->input->post('father_name');
        $data['mother_name'] = $this->input->post('mother_name');
        $data['class_id']    = $this->input->post('class_id');
        $data['roll']        = $this->input->post('roll');
        $this->db->insert('student', $data);
        $student_id = mysql_insert_id();
        move_uploaded_file($_FILES['userfile']['tmp_name'], 'uploads/student_image/' . $student_id . '.jpg');
        $this->email_model->account_opening_email('student', $data['email']); //SEND EMAIL ACCOUNT OPENING EMAIL
        $this->session->set_flashdata('flash_message', get_phrase('add_student_success'));
        redirect(base_url() . 'index.php?admin/student/' . $data['class_id'], 'refresh');
    }
    if ($param2 == 'do_update') {
        $data['name']        = $this->input->post('name');
        $data['mname']       = $this->input->post('mname');
        $data['lastname']    = $this->input->post('lastname');
        $data['birthday']    = $this->input->post('birthday');
        $data['sex']         = $this->input->post('sex');
        $data['address']     = $this->input->post('address');
        $data['phone']       = $this->input->post('phone');
        $data['email']       = $this->input->post('email');
        $data['password']    = md5($this->input->post('password'));
        $data['father_name'] = $this->input->post('father_name');
        $data['mother_name'] = $this->input->post('mother_name');
        $data['class_id']    = $this->input->post('class_id');
        $data['roll']        = $this->input->post('roll');

        $this->db->where('student_id', $param3);
        $this->db->update('student', $data);
        move_uploaded_file($_FILES['userfile']['tmp_name'], 'uploads/student_image/' . $param3 . '.jpg');
        $this->crud_model->clear_cache();
        $this->session->set_flashdata('flash_message', get_phrase('edit_student_success'));
        redirect(base_url() . 'index.php?admin/student/' . $param1, 'refresh');
    } else if ($param2 == 'edit') {
        $page_data['edit_data'] = $this->db->get_where('student', array(
            'student_id' => $param3
        ))->result_array();
    } else if ($param2 == 'personal_profile') {
        $page_data['personal_profile']   = true;
        $page_data['current_student_id'] = $param3;
    } else if ($param2 == 'academic_result') {
        $page_data['academic_result']    = true;
        $page_data['current_student_id'] = $param3;
    }