Benchmark boilerplate (in PHP)

benchmark_boilerplate.php

<?php

const TIMES = 1000000;

function bench($function, $times = null) {

	$times = $times !== null ? $times : TIMES;

	$begin = microtime(true);

	for ($i = 0; $i < $times; ++$i) {

		$function();

	}

	return microtime(true) - $begin;

}

function format_results(array $benchs) {

	asort($benchs);

	$output = '';

	foreach ($benchs as $name => $time) {

		$output .= sprintf('%s : %f<br>', $name, $time);

	}

	return $output;

}

/**
 * BENCH ALL THE THINGS!
 */

$b1 = bench(function() {

	foreach (range('a', 'z') as $el) {

		// Pass.

	}

});

$b2 = bench(function() {

	$t = range('a', 'z');

	foreach ($t as $el) {

		// Pass.

	}

});

echo format_results(array(
	'with range() in foreach ()' => $b1,
	'with range() outside of foreach ()' => $b2,
));

Output, for me, looks like:

with range() in foreach () : 5.502829
with range() outside of foreach () : 5.618382