Y si lo pasas asi?
Código PHP:
$dato = "<script type='text/javascript'><!--//<![CDATA[
var m3_u = (location.protocol=='https:'?'https://www.url.com/openx/www/delivery/ajs.php':'http://www.url.com/openx/www/delivery/ajs.php');
var m3_r = Math.floor(Math.random()*99999999999);
if (!document.MAX_used) document.MAX_used = ',';
document.write (<scr+ipt type='text/javascript' src='+m3_u);
document.write (?zoneid=632);
document.write
if (document.MAX_used != ',') document.write (&exclude= + document.MAX_used);
document.write (document.charset ? '&charset='+document.charset : (document.characterSet ? '&charset='+document.characterSet : ''));
document.write (&loc= + escape(window.location));
if (document.referrer) document.write (&referer= + escape(document.referrer));
if (document.context) document.write (&context= + escape(document.context));
if (document.mmm_fo) document.write (&mmm_fo=1);
document.write ('><\/scr+ipt>);
//]]>--></script><noscript><a href='http://www.url.com/openx/www/delivery/ck.php?n=aa084f8f&cb=INSERT_RANDOM_NUMBER_HERE' target='_blank'><img src='http://www.url.com/openx/www/delivery/avw.php?zoneid=107&n=aa084f8f' border='0' alt='' /></a></noscript>");
$inserto = addslashes($dato);
Y lo llamas:
Código PHP:
echo stripslashes($inserto);