According to

Yeah I did see that, but it can according to the docs take an optional parameter.
http://php.net/manual/en/mysqli.get-client-info.php

I didn't want to make a BC breaking change in case a someone was passing in the $link parameter.

Passing in additional parameters will still be supported, as the implementation does not use zend_parse_parameters_none().

So do you think I should use arginfo_mysqli_no_options and remove the arginfo_mysqli_optional_link?

Yeah, that would make the most sense to me.

I have made those changes. Thanks for the input.

Comment on behalf of pollita at php.net:

eea4b0b

This bug is still open in https://bugs.php.net/bug.php?id=74737

@carusogabriel Thanks, closed.