tirage

gistfile1.php

<?php
function tirage_list($nb_tirage = 5, $list = array()) {
	$result = array();
	for($i = 1; $i <= $nb_tirage; $i++) {
		$count = count($list);
		if($count > 0) {
			$result = array_merge($result, array_splice($list, rand(0, $count - 1), 1));
		}
	}
	return $result;
}

function tirage_range($nb_tirage = 5, $min = 0, $max = 10, $scale = 1, $round = true) {
	$values = array();
	for($i = 1; $i <= $nb_tirage; $i++) {
		$values[] = mt_rand($min, $max);
	}
	$sum = array_sum($values);

	array_walk($values, function(&$value) use ($sum) {
		$value = $value / $sum * 100;
	});
	if($round) {
		array_walk($values, function(&$value) {
			$value = round($value);
		});
	}
	$sum = array_sum($values);
	return $values;
}

echo '<pre>';
print_r(tirage_list(4, array(1, 2, 3, 4, 5)));
echo '<br/><br/>';
print_r(tirage_range(4, 0, 10, 100));
echo '</pre>';