Please help - trying to fill table using php:

echo "

        

           

             
$notebook_bitlocker_id
             
$notebook_bitlocker_key
             
$notebook_employer
             
$notebook_comment
           
         
       
";

All is OK but I need to change font color (to red) to the fourth column (variable $notebook_comment). I tried something like this:

red text

but this is suitable to the static text only - I need to change color for the value of my variable. How to? Thank you.