BlueBreeze

<?php
require_once("bubble_sort.php");
require_once("insert_sort.php");
require_once("select_sort.php");
require_once("quick_sort.php");
require_once("merge_sort.php");

for($i = 0; $i < 10000; $i++)
{
	$arr[$i] = $i;
}

function time_test($sort)
{
	global $arr;
	shuffle($arr);
	
	$start = microtime(true);
	$arr = $sort($arr);
	$end = microtime(true);
	
	$time = $end - $start;
	
	echo "$sort uses $time seconds to sort <br>";
}
time_test("bubble_sort");
time_test("insert_sort");
time_test("select_sort");
time_test("quick_sort");
time_test("divide");

bubble_sort uses 5.5261211395264 seconds to sort
insert_sort uses 1.8885219097137 seconds to sort
select_sort uses 2.8068640232086 seconds to sort
quick_sort uses 0.025605916976929 seconds to sort
divide uses 0.29349398612976 seconds to sort