I have an answer to the question that has a decent number of upvotes on it. The question is erratic in its flow and it isn't clear on what the real question is. It was moved from SO to here and then closed for a good reason. However, it is a really good question in essence and is one I've seen come up numerous times.
However, it may be of better help to reword the question and then close it as a duplicate of What are the benefits of PHP?, especially because both mention web applications specifically.
It also might not be worth doing anything. Thoughts?