How to upload file in mysql database using php

- How to upload pdf file in mysql database using php
- How to upload zip file in mysql database using php
- How to upload excel file in mysql database using php
- How to upload csv file in mysql database using php
- How to upload excel file in mysql database using php codeigniter
- How to upload multiple pdf file in mysql database using php
- How to upload and download pdf file in mysql database using php
- Upload image file in mysql database using php