Wrapup of the PHP UK Conference 2010. Uploaded slides of my talk "RDBMS in the social networks age" about graphs in the database.

My latest article on Profiling using XHProf, a neat tool developed at Facebook. A step-by-step tutorial to install and use XHProf, and some useful hints on how to improve performances and scalability of your PHP application.

Speaking at the PHP Barcelona Conference 2009. Talk: "Trees in the Database: Advanced Data Structures".

Graphs in the database: how to store a graph data structure in a DBMS, and answer the most common queries typical of social networks, like "You might also know" or "You might also like", or "How you are connected to XYZ" (degrees of separation).

Extract frames from a movie and create a preview as animated GIF, using PHP, SPL, Imagick and FFmpeg.

Wrap-up of the Dutch PHP Conference, Amsterdam, 11-13 June 2009.

Speaking at the Dutch PHP Conference 2009. Talk: "Trees in the Database: Advanced Data Structures".

A quick tip on how to deal with Zend Framework directory structure and the public document root directory in most shared hosting accounts, using mod_rewrite and an .htaccess file.

A review of the book TYPO3 Extension Development" by Dmitry Dulepov, Packt Publishing

Exploring database delimited identifiers and case sensitivity: the effect of quoting table and field names in the various DBMS.