/**
 * Benchmark a php script
 *
 * @param array $time_sample
 * @return string HTML
 */
function quick_benchmark($time_sample = array())
{
	$steps = count($time_sample);
	$output = '';
 
	for($i=0;$i<$steps;$i++)
	{
		if($i<($steps-1))
		{
			$output .= '<p>Time '. ($i+1) .': '. number_format(($time_sample[$i+1] - $time_sample[$i]),6,'.','') .' seconds.</p>';
		}
	}
 
	$output .= '<p>Total time: '. number_format(($time_sample[$steps-1] - $time_sample[0]),6,'.','') .' seconds.</p>';
 
	return $output;
}

$time_sample[] = microtime(true); //start
sleep(1);
$time_sample[] = microtime(true); //time 1
sleep(2);
$time_sample[] = microtime(true); //time 2
sleep(3);
$time_sample[] = microtime(true); //time 3
sleep(1);
$time_sample[] = microtime(true); //time 4
 
echo quick_benchmark($time_sample);