It’s a big step from proficiency at PHP programming to being capable of developing commercial applications. As Fred Brooks estimated in his classic book, The Mythical Man Month (Addison-Wesley, 1995), “a programming product costs at least three times as much as a debugged program with the same function.”
My goal in writing this book is to help you take that big step.
What do you have to know beyond PHP programming? Well, there’s project organization (including staffing and scheduling), keeping the customer satisfied, identifying requirements (being agile but not sloppy), choosing the development and production platforms, designing the database, structuring the application to handle forms and buttons, dealing with security and error ...