I know Pascal since 1995 and up to its Delphi 7 dialect. Maintaining and heavily augmenting Mansion of Celebs (celebrity picture board) since 2010 and thus I know phpBB3.0.x inside out, resulting in knowing PHP up to 7.2, XHTML and CSS3. I avoid frameworks for their added complexity and getting dependant on them, so I'm able to write code (Pascal, PHP, XHTML, CSS and most notably JS) in the most reliable and readible way. As a side effect I'm also fond of regular expressions, text encodings (i.e. UTF) and the Win32 API.
Solving problems mostly comes down at misunderstood or inexistent basics: