'Pure' php vs 'mixed' (html + php)

I've noticed that many people on the list code in 'pure' php, i.e. <? print "<input type='text' name='fname' size='50'>"; // etc ?> Since most of my code is a mixture (the early stuff is 'mixed' html + php), I've been wondering why code in 'pure' php? Is there some compelling reason (that I'm unaware of) for doing so? Should I rewrite all my earlier code into its 'pure' form? If so, what do I do with the '<! DOCTYPE . . . > statement -- put it in quotes too? I would like to understand the reasons for writing code in this manner, when all my code works fine, displays great: am I missing something important here? Btw, I use the 'php' ending for all file names. Your thoughts, opinions and suggestions would be greatly appreciated -- I'd like to do what is best. Tia, Andre -- Please pray the Holy Rosary to end the holocaust of abortion. Remember in your prayers the Holy Souls in Purgatory. May God bless you abundantly in His love! For a free Cenacle Scriptural Rosary Booklet: http://www.webhart.net/csrb/