> The pipe operator [...] syntax only works for unary functions, so higher arity functions must be wrapped in an arrow function. It's coming - but to get PHP R

> The pipe operator [...] syntax only works for unary functions, so higher arity functions must be wrapped in an arrow function. It's coming - but to get PHP RFCs to pass they have to be salami-sliced, otherwise they're voted down. https://wiki.php.net/rfc/partial_function_application_v2 https://wiki.php.net/rfc/partial_function_application_v2