Doctrine\Common\Cache\FileCache::writeFile PHP Method

    protected function writeFile($filename, $content)
    {
        $filepath = pathinfo($filename, PATHINFO_DIRNAME);
        if (!$this->createPathIfNeeded($filepath)) {
            return false;
        }
        if (!is_writable($filepath)) {
            return false;
        }
        $tmpFile = tempnam($filepath, 'swap');
        @chmod($tmpFile, 0666 & ~$this->umask);
        if (file_put_contents($tmpFile, $content) !== false) {
            if (@rename($tmpFile, $filename)) {
                return true;
            }
            @unlink($tmpFile);
        }
        return false;
    }