I write PHP, MySQLi, some PDO and the usual bag of HTML, XHTML, Javascript, JQuery and CSS.
I have been writing PHP for about 15 years. Programming for about 20 years.
READ THIS: https://dearstackexchange.com/
10 million, that's nice. #SOReadyToEatChips
Stack Overflow
Q&A for professional and enthusiast programmers
Information Security
Q&A for information security professionals
Database Administrators
Q&A for database professionals who wish to improve their database skills and learn from others in the community
Server Fault
Q&A for system and network administrators
Bicycles
Q&A for people who build and repair bicycles, people who train cycling, or commute on bicycles
Game Development
Q&A for professional and independent game developers
Meta Stack Exchange
Q&A for meta-discussion of the Stack Exchange family of Q&A websites
Home Improvement
Q&A for contractors and serious DIYers
Unix & Linux
Q&A for users of Linux, FreeBSD and other Un*x-like operating systems
Cryptography
Q&A for software developers, mathematicians and others interested in cryptography
WordPress Development
Q&A for WordPress developers and administrators
Arqade
Q&A for passionate videogamers on all platforms
Geographic Information Systems
Q&A for cartographers, geographers and GIS professionals
Network Engineering
Q&A for network engineers
Android Enthusiasts
Q&A for enthusiasts and power users of the Android operating system
Physical Fitness
Q&A for physical fitness professionals, athletes, trainers, and those providing health-related needs
Physics
Q&A for active researchers, academics and students of physics
Music: Practice & Theory
Q&A for musicians, students, and enthusiasts
Graphic Design
Q&A for Graphic Design professionals, students, and enthusiasts
Artificial Intelligence
Q&A for people interested in conceptual questions about life and challenges in a world where "cognitive" functions can be mimicked in purely digital environment
Magento
Q&A for users of the Magento e-Commerce platform
Super User
Q&A for computer enthusiasts and power users
Joomla
Q&A for Joomla! administrators, users, developers and designers
Open Source
Q&A for people organizing, marketing or licensing open source development projects
Software Engineering
Q&A for professionals, academics, and students working within the systems development life cycle
Code Review
Q&A for peer programmer code reviews
Seasoned Advice
Q&A for professional and amateur chefs
Web Applications
Q&A for power users of web applications
Stack Overflow
Q&A for professional and enthusiast programmers