http_build_query() default null argument for $arg_separator is implicitly coerced to string

[mr-bz]

Description

The following code:

<?php
http_build_query(
                $array,
                encoding_type: PHP_QUERY_RFC3986
            )

Resulted in this output:

http_build_query(): Passing null to parameter #3 ($arg_separator) of type ?string is deprecated

But I expected this output instead:

PHP Version

8.3

Operating System

No response

[damianwadley]

I'm thinking 76eaff0 should have used Z_PARAM_STR_OR_NULL. @Girgias ?

[Girgias]

That is indeed the case, my mistake.

[Girgias]

Note the implicit null coercion result in the wrong output string(18) "hello=worldfoo=bar" instead of string(19) "hello=world&foo=bar"

[Girgias]

Fixed in 37f67a9 (and follow-up af155cf)