HTML POST label

I don’t know the correct term for this “Label”, which I’m talking about - it’s not in tag tags, its just

<td width="300"> text </td>

I want to be able to "POST" to a PHP script. I know how to post messages, but not from the above label / text The reason I want to do this is because I had a text box that was automatically populated from session variables. But I used the "disabled" function in HTML, but then made the material "sent" to my php script considered empty, deleting the "disabled" line, it works, but I need it, so the text is not edited by the user.

Thank you very much in advance