Psr17Factory::createStreamFromFile( string $filename, string $mode = 'r' )

48    public function createStreamFromFile(string $filename, string $mode = 'r'): StreamInterface49    {50        if ('' === $filename) {51            throw new \RuntimeException('Path cannot be empty');52        }53        if (\false === $resource = @\fopen($filename, $mode)) {54            if ('' === $mode || \false === \in_array($mode[0], ['r', 'w', 'a', 'x', 'c'], \true)) {55                throw new \InvalidArgumentException(\sprintf('The mode "%s" is invalid.', $mode));56            }57            throw new \RuntimeException(\sprintf('The file "%s" cannot be opened: %s', $filename, \error_get_last()['message'] ?? ''));58        }59        return Stream::create($resource);60    }