protected function findCacheFilesByIdentifier(string $entryIdentifier)
    {
        $pathAndFilename = $this->cacheDirectory . $entryIdentifier . $this->cacheEntryFileExtension;
        return (file_exists($pathAndFilename) ? [$pathAndFilename] : false);
    }
protected function findCacheFilesByIdentifier(string $entryIdentifier)
    {
        $pathAndFilename = $this->cacheDirectory . $entryIdentifier . $this->cacheEntryFileExtension;
        return (file_exists($pathAndFilename) ? [$pathAndFilename] : false);
    }
protected function findCacheFilesByIdentifier ( string $ entryIdentifier ) { $ pathAndFilename = $ this -> cacheDirectory . $ entryIdentifier . $ this -> cacheEntryFileExtension ; return ( file_exists ( $ pathAndFilename ) ? [ $ pathAndFilename ] : false ) ; }
Tries to find the cache entry for the specified identifier.

@param string $entryIdentifier The cache entry identifier
@return mixed The filenames (including path) as an array if one or more entries could be found, otherwise false
Tries to find the cache entry for the specified identifier .