Derick Rethans is a PHP internals expert, author of Xdebug and an OpenStreetMap and mapping enthusiast.
He has contributed in a number of ways to the PHP project, including the Xdebug debugging tool, and various extensions and additions. He's a frequent lecturer at conferences, the author of php|architect's Guide to Date and Time Programming, and the co-author of PHP 5 Power Programming. He is now working at MongoDB to work on the PHP and HHVM drivers for MongoDB.
Saturday 30th September 10:45 - 11:35
In this presentation we will look at storing complex data in a single field. Many noSQL solutions are created around this (such as Redis' lists, sets and hashes; MongoDB's and CouchDB's records), and many relational database now also support storing complex data in a single field through specific data types (such as PostGreSQL's JSONB or hstore, MySQL's JSON). Each of the different database engines support different things, and handle these data types in different ways. In this session we compare the different approaches to storage, indexing and interactions with these data types in different databases.
Saturday 30th September 15:00 - 15:50
In this session we will look at low-level (Linux) system debugging tools to find out what is going on (or wrong!) with your PHP environment, although the techniques are also valid for other programs besides PHP. We will cover debugging crashes with gdb, checking out memory leaks with valgrind, and many other tools to find out what is going wrong, and hopefully, figure out why. This session teaches tools to help out with tracking down bugs, and provides information on how to get better at debugging connection issues, crashes, files not being written, etc. The session is also valuable for people who want to help out with providing good bug reports for Open Source projects.
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