src/Dominia/Crawler.php
private function existePdf($filename, $hash){
        $ruta = realpath($this->docsHome).'/'.$hash."-".$filename;
        return file_exists($ruta);
    }
private function existePdf($filename, $hash){
        $ruta = realpath($this->docsHome).'/'.$hash."-".$filename;
        return file_exists($ruta);
    }
Checks if a file exists in docs home folder
@param $filename
@param $hash
@return bool