writeInteger example

/** * Writes a "resource" node. * * @param resource $file The file handle to write to * @param mixed $value The value of the node * * @see http://source.icu-project.org/repos/icu/icuhtml/trunk/design/bnf_rb.txt */
    private function writeResource($file, mixed $value, int $indentation, bool $requireBraces = true): void
    {
        if (\is_int($value)) {
            $this->writeInteger($file, $value);

            return;
        }

        if ($value instanceof \Traversable) {
            $value = iterator_to_array($value);
        }

        if (\is_array($value)) {
            $intValues = \count($value) === \count(array_filter($value, 'is_int'));