different content for ip ranges

Ok im trying to block traffic from certian ip ranges.. and anyway i still want the users to be able to see my bidvertiser ads and some content.. but not all content.. so i made this..

<?php
function checkIP($ip_to_match, $ip_array) {


if (is_array($ip_array)) {


foreach ($ip_array as $ip) {


if (strstr($ip_to_match, $ip) && strpos($ip_to_match, $ip)==0) {
return true;
}
}
}

return false;
}

$ban_array = array(
'216.47.55.141',
'72.47.147',
'62',
'62',
'24',
'84',
'81',
'82',
'83',
'86',
'12',
'125',
'149',
'89'

);

if (checkIP($_SERVER['REMOTE_ADDR'], $ban_array)) {
echo "This page is not accessable for users in your area. .";
exit;
}
?>

see where it says echo "This page is not accessable for users in your area. .";

I want to place some bidvertiser code there but with out editing the code

 

"with out editing the code". That's impossible ....?!

 

if (checkIP($_SERVER['REMOTE_ADDR'], $ban_array)) {
echo "This page is not accessable for users in your area. .";
?>
STANDARD CODE CAN GO HERE AS YOU CAN CLOSE PHP IN THE MIDDLE OF
LOOPS OR CONDITIONAL TESTS AND RESUME LATER
<?php

exit;
}
?>