BrowscapPHP\Cache\BrowscapCacheInterface::hasItem PHP Метод

    public function hasItem($cacheId, $withVersion = true);

 /**
  * Gets the relevant part (array of settings) of the ini file for a given pattern.
  *
  * @param  string $pattern
  * @return array
  */
 private function getIniPart($pattern)
 {
     $pattern = strtolower($pattern);
     $patternhash = Pattern::getHashForParts($pattern);
     $subkey = SubKey::getIniPartCacheSubKey($patternhash);
     if (!$this->cache->hasItem('browscap.iniparts.' . $subkey, true)) {
         $this->logger->debug('cache key "browscap.iniparts.' . $subkey . '" not found');
         return [];
     }
     $success = null;
     $file = $this->cache->getItem('browscap.iniparts.' . $subkey, true, $success);
     if (!$success) {
         $this->logger->debug('cache key "browscap.iniparts.' . $subkey . '" not found');
         return [];
     }
     if (!is_array($file) || !count($file)) {
         $this->logger->debug('cache key "browscap.iniparts.' . $subkey . '" was empty');
         return [];
     }
     $propertyFormatter = new PropertyFormatter(new PropertyHolder());
     $return = [];
     foreach ($file as $buffer) {
         list($tmpBuffer, $patterns) = explode("\t", $buffer, 2);
         if ($tmpBuffer === $patternhash) {
             $return = json_decode($patterns, true);
             foreach (array_keys($return) as $property) {
                 $return[$property] = $propertyFormatter->formatPropertyValue($return[$property], $property);
             }
             break;
         }
     }
     return $return;
 }