How to test if a variable is primitive in PHP

Question

What would be the best (most efficient, easiest to understand in the code, etc) way to check whether a variable is of primitive type in PHP?

Should I go the "positive" (e.g. is_string() || is_int()...) way, or vice versa !is_array() && __is_object().. or maybe some even fancier way?

Answer 1

You are looking for is_scalar().