Here is an example:

<?php  for ($i = 4; $i < 8; $i++) {
   print "I have eaten $i bagels today.\n";} 
?>

Even with the newline character there, no new line is generated in the output.  As you can see, this happens with print, but it also happens with printf and echo.

The only thing it does is add a single space where it should have been a new-line.