code string problem

[LuciBKen]

Could someone please tell me how to add a line break in code like this for example:

 

$xml .= "foo=2";

$xml .= "bar";

$xml .= "2U";

 

I want each line to start on a new line in the output file

 

[chigley]

$xml .= "foo=2\n";
$xml .= "bar\n";
$xml .= "2U\n";