Scott MacVicar has contributed various extensions and improvements to the PHP core over the past few years. If something is wrong with fileinfo, JSON or SQLite3 it's likely something he did. He is also the current President of the PHP London Usergroup and presents frequently at conferences on databases, caching and scaling.
Scott is also the admin for the Google Summer of Code program and has written numerous PHP articles. When not connected to the internet, Scott runs marathons and cooks!
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