<?php function function_output($price=0,$type='normal') { switch (true) { case $type == "special": $message = "It's Special"; break; case $price == 0: $message = '<span class="free">Free</span>'; break; default: $message = '$'.$price; } return $message; } echo function_output(50).PHP_EOL; echo function_output(0).PHP_EOL; echo function_output(500,'special'); ?>