[PHP] Putting quotes in?

[Ender]

Okay I am taking a number from a mySQL database and I want to put quotes on that 
number?

How would I do this?

$databasenumber = 123.123.123.123;

How do I make 
$databasenumber = "123.123.123.123";

To:
runprogram("hls",$databasenumber);

Best regards,

Ender [Clan Leader]
[EMAIL PROTECTED]