If you've been mystified by regular expressions in the past and want to learn more about their effective use, you should check out these two webcasts from Qafoo - "Black Magic with Regular Expressions" and "Understanding Regular Expressions".

We are happy to announce the availability of my second Regular Expression webinar recording. It was a fun event, which I used to explain all the attendees a little bit more about the PCRE Regular Expression engine available in PHP and some other languages. I am covering some slightly advanced topics, like subpattern options, unicode and backtracking aka. greediness and performance.

You can watch these two recordings over on the Zend.com site:

• Black Magic with Regular Expressions
• Understanding Regular Expressions