Meetup - Helps groups of people with shared interests plan events and facilitates off line group meetings in various localities around the world.
PHPmaker - PHPMaker is a powerful automation tool that can generate a full set of PHP quickly from MySQL, PostgreSQL, Oracle, Microsoft Access, Microsoft SQL Server and SQLite databases.
Event Hunt - Startups and Tech Events Curated By Locals
VFront - VFront is a dynamic front-end for MySQL or PostgreSQL databases written in PHP and Javascript.
Eventbrite - Discover Great Events or Create Your Own & Sell Tickets
PHPRunner - PHPRunner builds visually appealing web interface for popular databases.