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The better way to "style HTML tags" (not php ones) is to use formal css code placed into the HTML <style> tag section of your html code. That way you don't have to place attributes into multiple places in your html. You can style similar things by defining CSS code for a tag name (ie, td, tr, p, span, whatever) and then referencing that css id name like this: in the head tag section add <style type='text/css'> #style1 { padding: 4px 6px; margin:1%; } and then in the html: <div id='style1'>

<div class="section" style="<whatever css style you want>"> <?php if(isset($_SESSION['uid'])) { echo 'Hello,'; echo $_SESSION["uid"]; } ?> </div>

Don't do that. Not in the actual table at least. Some people recommend this stupidity to try and avoid name collisions in their queries (such as two tables have a Label column) but such issues can be easily handled using the table.column syntax in your query rather than cluttering up column names in the table. SELECT o.Label as o_label, s.Label as s_label FROM order o INNER JOIN status s ON s.Id=o.Status One of the applications I work on was original designed using a scheme like that where every column has a table specific prefix to it and it's super annoying (long names, broken autocomplete) for no real benefit. I've been slowly undoing that when I can and just giving the columns nice simple names. I'd also suggest just using the full table name in your constraint names rather than some alias. It makes things very clear when someone 6 months later needs to decipher things.

Disney character names for constraints