Update printThis.php

If you get sick of adding <pre> tags and other crap around your output because you just want to visualise that damn value, then this function will help.  Just type pt($yourValue) and it's taken care of.  

String value, Array or JSON Array no worries flat or multidimensional, bingo it all comes out on screen.  Need to include the output inside other output, too easy just change the echo value to return.