A single line is all you need:
/* @var $varName Type_Name */
See this article in the NetBeans PHP Blog: https://blogs.oracle.com/netbeansphp/entry/defining_a_variable_type_in
Note: At least, in version 8.2; The key seems to be:
- The single asterisk (
/*
instead of/**
).- Placing the type after the variable name.
- Having nothing before and after the type-hinting
(except white-space, but even that is not allowed
when the comment is not in a single line).