src/Mordilion/Configurable/Configuration/Reader/Json.php
private function decode(string $json): array
    {
        $data = json_decode($json, true);

        if (!is_array($data)) {
            throw new \InvalidArgumentException('The provided JSON is not valid.');
        }

        if (json_last_error() === JSON_ERROR_NONE) {
            return $data;
        }

        throw new \RuntimeException(json_last_error_msg());
    }
private function decode(string $json): array
    {
        $data = json_decode($json, true);

        if (!is_array($data)) {
            throw new \InvalidArgumentException('The provided JSON is not valid.');
        }

        if (json_last_error() === JSON_ERROR_NONE) {
            return $data;
        }

        throw new \RuntimeException(json_last_error_msg());
    }
Decodes the provided $json into an object or an array.

@param string $json

@throws \InvalidArgumentException if the provided json is not valid
@throws \RuntimeException if the decoding throwed some errors

@return array