Here is the PHP script that caused the problem:

<?
        $regexes = array("/(bold)/i", "/(something)/");
        $text = "This is really something to see!  A bold new achievement in the world of bugs.  Not to mention something that I pr\
obably misspeled there.  Woo hoo!";
        $new = preg_replace($regexes, "<B>\\1</B>", $text);
        print $new;
?>

That's the entire php file, btw.  

Under PHP3, this would bold all occurances of the words "bold" and "something".  Under PHP4b3 (downloaded about 3 hours before submitting this), it does NOT replace correctly past the first occurance, and it mangles the string in the process.  Here is the output:

---
This is really <B>something</B> to see!  A <B>bold</B> new achievement in the world of bugs.  Not to mention <B>y misspel</B> that I probably misspeled there.  Woo hoo!
---

Ok, this is running PHP4b3 on Solaris 7 5/99, using gcc 2.8.1 downloaded from www.sunfreeware.com.  It's running on a really old SparcStation 10, so it's only 32 bit solaris...  

The configuration command for php4 was:

configure --with-xml --enable-trans-sid --with-pgsql --with-apache=../apache_1.3.9

And the only configure options to Apache were first the --prefix=/usr/local/apache, and then after installing php4 into it, --prefix=/usr/local/apache and --activate-module=src/modules/php4/libphp4.a

Thanks!
-- Dave