During the initial learning phase I wasn't as enthralled because who cares what $this->someFunction($variable) means? I'd say I put in around an hour per day for the first month and then once I got the hang of it, probably 2-4 hours per day after that. I made sure to take off programming at least one day per week so I wouldn't get burned out considering I was working full time too.

So, I'd estimate around 150-160 hours. I should've kept track. I plan on learning ruby later on this year and I'll be sure to keep a record of that.