PHP Echo text Color

How about writing out some HTML tags and some CSS if you're outputting this to the browser?

echo '<span style="color:#AFA;text-align:center;">Request has been sent. Please wait for my reply!</span>';

Won't work from console though, only through browser.

How about writing out some escape sequences?

echo "\033[01;31m Request has been sent. Please wait for my reply! \033[0m";

Won't work through browser though, only from console ;))