Hi, Lack of type information for internal functions in Reflection is a long-standing issue. In PHP 8 we finally have all the necessary technical groundwork done to support argument and return type annotations on internal functions at scale.
The only thing left is to actually add those type annotations ... to many hundreds of functions. This is something everyone can help with, as it does not need expertise in C. I've opened a sample PR to show the process: https://github.com/php/php-src/pull/4499 Here, we take some existing arginfo structures in basic_functions.c and convert them into stubs in basic_functions.stub.php. We can take the argument names from the existing arginfo. To figure out the types, we need to look at the implementation (the php.net documentation tends to lie about details). For example, the first function, set_time_limit is defined in https://github.com/php/php-src/blob/172c71980df0fe4c9d62c3365f0a2cdb139e3e86/main/main.c#L1501. We see that it accepts an "l" parameter, which is an int. We see that it uses RETVAL_TRUE and RETVAL_FALSE, which means the return value is a bool. Once this is done, we need to auto-generate new arginfo data. If you have a development setup, this is done automatically when running "make". Otherwise, it's possible to manually run "php scripts/dev/gen_stub.php ext/standard/basic_functions.stub.php". Any help would be appreciated :) Regards, Nikita
