PHP Echo a large block of text

Question

Im new to PHP and I can\'t figure out what the rules are for using the echo function. For example, if I need to echo a large block of css/js, do I need to add echo to each line

Answer 1

$num = 5;
$location = 'tree';

$format = 'There are %d monkeys in the %s';
echo sprintf($format, $num, $location);