Wanting to better understand

Hey, I am trying to better understand something, I learned a couple weeks ago that if I do this... If ($field == "value1") { $field = "change to new value"; Now I have use this to change 0000-00-00 to &nbsp;. And the following. If ($days > "30") { $days "<strong><font color='ff0000'>" . $days . "</font></strong>"; } Want I want to do was add a second line this below to change the another value to change to change to another color... If ($days > "45") { $days "<strong><font color='ff00ff'>" . $days . "</font></strong>"; } But, the second value is over riding the first vaule so I can't see the differents. I sorry that this might be confusing but I am trying to ask the way I can. I am not sure what you call this, expression I think. Any way is there a way that I can use this expression to get two or more colors. Thanks Chuck Payne Magi Design and Support