BrowscapPHP\Parser\Helper\GetPattern::getPatterns PHP Метод

    public function getPatterns($userAgent)
    {
        $starts = Pattern::getHashForPattern($userAgent, true);
        $length = strlen($userAgent);
        // add special key to fall back to the default browser
        $starts[] = str_repeat('z', 32);
        // get patterns, first for the given browser and if that is not found,
        // for the default browser (with a special key)
        foreach ($starts as $tmpStart) {
            $tmpSubkey = SubKey::getPatternCacheSubkey($tmpStart);
            if (!$this->cache->hasItem('browscap.patterns.' . $tmpSubkey, true)) {
                $this->logger->debug('cache key "browscap.patterns.' . $tmpSubkey . '" not found');
                continue;
            }
            $success = null;
            $file = $this->cache->getItem('browscap.patterns.' . $tmpSubkey, true, $success);
            if (!$success) {
                $this->logger->debug('cache key "browscap.patterns.' . $tmpSubkey . '" not found');
                continue;
            }
            if (!is_array($file) || !count($file)) {
                $this->logger->debug('cache key "browscap.patterns.' . $tmpSubkey . '" was empty');
                continue;
            }
            $found = false;
            foreach ($file as $buffer) {
                list($tmpBuffer, $len, $patterns) = explode("\t", $buffer, 3);
                if ($tmpBuffer === $tmpStart) {
                    if ($len <= $length) {
                        (yield trim($patterns));
                    }
                    $found = true;
                } elseif ($found === true) {
                    break;
                }
            }
        }
        (yield '');
    }

 /**
  *
  */
 public function testGetPatterns()
 {
     $result = $this->object->getPatterns('Mozilla/5.0 (compatible; Ask Jeeves/Teoma*)');
     self::assertInstanceOf('Generator', $result);
 }