/**
* Given an array of strings, a number and, if wanted, an optional locale (the default one is used
* otherwise), this picks the right string according to plural rules of the locale
*
* @param array|string $strings
* @param int $number
* @throws Exception\InvalidArgumentException
* @return string
*/
public function __invoke($strings, $number)
{
if ($this->rule === null) {
throw new Exception\InvalidArgumentException(sprintf('No plural rule was set'));
}
if (!is_array($strings)) {
$strings = (array) $strings;
}
$pluralIndex = $this->rule->evaluate($number);
return $strings[$pluralIndex];
}
