如何在网站上添加和保存文本区域[关闭]

I want to know how to have a comment box (textarea) saved unto my member webpage. Its suppose to be a section for biography where members can add a bio and save it unto their profile page.

I have been looking for days but have not found anything in it. I thought it would be the same concept with uploading images but I don't know.

EXAMPLE I was thinking of using this method and saving it as a file and having a php command echo it unto my members profile page every time they load their profile page. I'm sure there is an easier way to have members add directly to the HTML code and embed it whenever they decide to change their bio.

#bio {
  Text-align: center;
  Padding: 10px;
}
<div ID="bio">
  <form class="centerd" method="post" action="upload.php" enctype="multipart/form-data">
    <textarea id="html" type="text" name="html-text"></textarea>
    <input type="submit" value="upload" />
  </form>
</div>

</div>

Without your code it is hard to give you detailed advice. So here are some basics you might want to look into.

If you are using a form input in HTML you can use the PHP $_GET to work with the data. From there you can store your data in a data table if you are using a database. The information stored in that table can then be queried to populate your member's pages. All of this would require some working knowledge with HTML, PHP and SQL.