Is an acronym always pronounced as a single word? [duplicate]

Solution 1:

A criterion for acronyms for many people is that they are pronounced as one word. However, this is not the case for all speakers and the confusion arises because of a lack of consensus on usage.

Note that recursive initialism is also used.

If you consider PHP an initialism, then you would also say it is a recursive initialism.

If you accept it as an acronym then it is appropriate to use the term "recursive acronym".