Pipe\Asset::getExtensions PHP Метод

    protected function getExtensions()
    {
        if (null === $this->extensions) {
            $basename = $this->getBasename();
            # Avoid treating name of a dotfile as extension by
            # ignoring dots at the first offset in the string
            if (!$basename or false === ($pos = strpos($basename, '.', 1))) {
                return array();
            }
            $extensions = explode('.', substr($basename, $pos + 1));
            $this->extensions = array_map(function ($ext) {
                return Path::normalizeExtension($ext);
            }, $extensions);
        }
        return $this->extensions;
    }