Rasmus Lerdorf look at the last 25 years of PHP: https://www.youtube.com/watch?v=wCZ5TJCBWM
Really interesting for anyone wondering what the thinking was behind function naming and other inconsistencies jump to: https://youtu.be/wCZ5TJCBWMg?t=987 and https://youtu.be/wCZ5TJCBWMg?t=1466