Studying the physical sciences is also more mentally taxing than coding PHP. I've gotten paid for both. You can't compare designing aircraft in CAD and Excel (w

Studying the physical sciences is also more mentally taxing than coding PHP. I've gotten paid for both. You can't compare designing aircraft in CAD and Excel (what I do) that could kill someone if done improperly, with setting up email verification for your social networking site. Not even close. You are not going to just go anywhere with just a social networking site. It's going to be much harder than that.