When the JsonValidateRector rule converts the json_decode function call to a json_validate function call, it incorrectly preserves the "associative" parameter if it is present. This is wrong because json_validate does not have an "associative" argument (it does not create json output, so this argument would be useless). This results in code which is either incorrect (passing the associative parameter to the flags argument) or an error if named arguments are used.

See https://getrector.com/demo/99b22fb6-f24a-485d-a5fe-e402ed53f886