getting lowest and highest value out of group of variables

[advancedfuture]

So lets say I have a group of varialbes all with different numerical values, and I want to print to find and print the varialbe with the lowest value and the highest value.. How would I write that in PHP... the varialbes are dynamic and can change.

 

$val1 = 100;
$val2 = 300;
$val3 = 600;
$val4 = 1;
$val5 = 20;

[tapos]

use max() and min().

for further info

http://www.php.net/manual/en/function.max.php http://www.php.net/manual/en/function.min.php