public function getWebSrvUser() {
		$result = '';
		if ($this->isOsWindows()) {
			return $result;
		}

		$cmd = "ps aux | grep -E '[a]pache|[h]ttpd|[_]www|[w]ww-data|[n]ginx' | grep -v root | head -1 | cut -d\  -f1 2>/dev/null";
		$output = [];
		$exitCode = -1;
		exec($cmd, $output, $exitCode);
		if (($exitCode !== 0) || (count($output) < 1)) {
			return $result;
		}

		$result = array_shift($output);

		return $result;
	}