Tryit Editor v2.3 - Show PHP

PHP Source:

<!DOCTYPE html>
<html>
<body>

<?php
$str = "Hello World!\n\n\n";
echo "Without rtrim: " . $str;
echo "<br>";
echo "With rtrim: " . rtrim($str);
?>

</body>
</html>

Result:

Show PHP - © w3schools.com