protected function FilesystemCache::doContains in Plug 7

Tests if an entry exists in the cache.

Parameters

string $id The cache id of the entry to check for.:

Return value

boolean TRUE if a cache entry exists for the given cache id, FALSE otherwise.

Overrides CacheProvider::doContains

File

lib/doctrine/cache/lib/Doctrine/Common/Cache/FilesystemCache.php, line 77

Class

FilesystemCache

Filesystem cache driver.

Namespace

Doctrine\Common\Cache

Code

protected function doContains($id) {
  $lifetime = -1;
  $filename = $this
    ->getFilename($id);
  if (!is_file($filename)) {
    return false;
  }
  $resource = fopen($filename, "r");
  if (false !== ($line = fgets($resource))) {
    $lifetime = (int) $line;
  }
  fclose($resource);
  return $lifetime === 0 || $lifetime > time();
}