EASY: Re-write PHP Code $10

Hi.

I have a php code that split tests two landing pages, I'd like for someone to rewrite it so that it split tests 4 landing pages.

PM if you can do this. I pay with paypal. Thanks!

<?php
$handle = fopen("visitors.txt", "r");
$nr = fread($handle, 128);
fclose($handle);

if($nr == 1){
$handle = fopen("visitors.txt", "w");
fwrite($handle, "2");
fclose($handle);
header("Location: http://www.yahoo.com");
} else {
$handle = fopen("visitors.txt", "w");
fwrite($handle, "1");
fclose($handle);
header("Location: http://www.msn.com");
}


?>

 

PM me if you would like this done.

 

<?php
$handle = fopen("visitors.txt", "r");
$nr = fread($handle, 128);
fclose($handle);

if($nr == 1){
$handle = fopen("visitors.txt", "w");
fwrite($handle, "2");
fclose($handle);
header("Location: http://www.yahoo1.com");
}
if($nr == 2){
$handle = fopen("visitors.txt", "w");
fwrite($handle, "3");
fclose($handle);
header("Location: http://www.yahoo2.com");
}
if($nr == 3){
$handle = fopen("visitors.txt", "w");
fwrite($handle, "4");
fclose($handle);
header("Location: http://www.yahoo3.com");
} if($nr == 4){
$handle = fopen("visitors.txt", "w");
fwrite($handle, "1");
fclose($handle);
header("Location: http://www.yahoo4.com");
}


?>