Derick Rethans is a PHP internals expert and author of ‘https://xdebug.org’. He works as an independent contractor and consultant on PHP extensions and related projects.
He works for the PHP Foundation to improve PHP, and continues to contribute to the PHP project in numerous forms (‘https://www.php.net/datetime’, ‘https://xdebug.org’, PHP 4.4/7.4 Release Manager, etc).
He is a frequent lecturer at conferences, the author of ‘https://phpdatebook.com’, php|architect’s Guide to Date and Time Programming, and the co-author of ‘PHP 5 Power Programming’. Derick is also the host of the weekly-ish PHP Internals News podcast.