An example of php long string (here document) definition method

$xx=<<I don’t grow, I don’t grow, I don’t grow,
I don’t grow , I don’t grow, I don’t grow, I don’t grow, I don’t grow, I don’t grow, I don’t grow,
 I don’t grow, I don’t grow, I don’t grow, I don’t grow, I don’t grow,?
Script Academy http://bbs.it-home.org
html;
$x='me It's very long. How do I wrap it in a new line? I am very long,
How to wrap the line? I am very long, how to wrap it? I am very long,
How to wrap the line? I am very long, how to wrap it?
Programmer's Home http://bbs.it-home.org ';
echo $xx;
?>