Code to rotate easily between adsense and ypn

A few webmasters have recently been talking about rotating google and yahoo ads on the same page. I wrote a VERY simple php script to do this. You just need 2 text files. One of them called adsense.txt which contains your adsense code and the other called YPN.txt which contains your YPN code. The reason you need to include the txt files is because if you put the code directly into the script you would have to excape the “‘s and therefore violate TOS by altering the code. Just to be safe the example below shows you how to do it with includes.

< ?php
$number=mt_rand(1, 2);
if ($number=="1") {
include "adsense.txt"; #include the text file with adsense code
}
else
{
include "YPN.txt"; #include the text file with ypn code
}
?>
thats it!