While not specifically relating to PHP, Erika Heidi's latest post talks about a technique that could help you be more productive in the coding work you do - focusing in on your "time problems" and possibly using the Pomodoro technique to help correct them.

This is a quite famous quotation that is being repeated through the years. "Time is money" is a very contrived way to say that if you lose time, you might be losing money. I personally don’t like this quote; lets refactor it to something that better reflects reality: “Productivity is Money” sounds way more realistic. [...] What we really need is to figure out a way to better use the time we have. How do we maximize our productivity?

She breaks it up into four things that can help identify these "time problems":

• Diagnosing your time problems
• Managing your Focus
• Self-sabotage by the scumbag brain
• The Pomodoro Technique

In this last section she introduces the technique (and tool - the tomato timer) and how it works. She points out the places where the process is flexible and how, especially if you're deep in code, getting to the point of taking a timed break (and sticking with it) can help give perspective.