Делал так:
sait1
<?php
$text ='"
google_ad_client = "pub-3727717386447886";
/* Left Skyscraper 120x600, created 3/14/10 */
google_ad_slot = "4012594297";
google_ad_width = 120;
google_ad_height = 600;
"';
?>
document.write('<?php print "$text"; ?>');
Выводил на сайте2:
<script type="text/javascript"><!--
<script type="text/javascript" src="http://sait/adsense.php"></script>
//-->
</script>
<script type="text/javascript" src="http://pagead2.googlesyndication.com/pagead/show_ads.js">
</script>
Не работает!!!