podmíněnej random

$random_index = $random_index1 = mt_rand(1, 20);
while ($random_index1 == $random_index) { $random_index1 = mt_rand(1, 20); }

function deleteFromArray($array, $key)
{
	$newArray = array();
	$index = 0;
	
	for($i = 0; $i < count($array); $i++)
	{
		if($i != $key)
		{
			$newArray[$index++] = $array[$i];
		}
	}
	
	return $newArray;
}

$pocetCisel = 3;
$pole = array();

for($i = 0; $i < $pocetCisel; $i++)
	$pole[$i] = $i + 1;

$index = mt_rand(0, $pocetCisel - 1);
$random_index = $pole[$index];
$pole = deleteFromArray($pole, $index);

$index = mt_rand(0, $pocetCisel - 2);
$random_index1 = $pole[$index];

$pole = array();
for ($i = $min; $i <= $max; $i++) $pole[] = $i;
shuffle($pole);
$random_index = array_pop($pole);
$random_index1 = array_pop($pole);