PHP and the pcre.backtrack_limit

Just came across this today. Looks like in PHP 5.2, they decided to add a 100000 byte limit to regular expression matches. This can stop a lot of searches on long strings, and the worst part is that PHP doesn't throw any error when that limit is reached. If you are using the perl-compatible regular expressions in PHP, you will likely want to change the pcre.backtrack_limit in the php.ini file to something larger than 100000.