preg_match多个IP？

Question

I'm using preg_match to match a referring url AND and an IP block. How do I tell my code to look for the referral, then if it matchs check multiple IP blocks? ie: 70.x.x.x OR 96.x.x.x

Here is my code so far (that works with one IP block "70.x.x.x")

<?php
$referrer = $_SERVER['HTTP_REFERER'];
$visitor = $_SERVER['REMOTE_ADDR'];
if ((preg_match("/referrer-domain.com/",$referrer)) && (!preg_match("/70./",$visitor))){
echo "<meta http-equiv='refresh' content='0;url=http://www.new-domain.com'>";
}
?>

I know this is a simple question, just having a brain fart today.

Answer 1

preg_match("/(70|96)./",$visitor)

It should also probably be:

preg_match("/^(70|96)\./",$visitor)

or you'll be blocking 1.2.96.4 and 1.2.3.70 etc. as well.