Find Lowest value min()

If the first and only parameter is an array, min() returns the lowest value in that array. If at least two parameters are provided, min() returns the smallest of these values.

<?php
echo min(2, 3, 1, 6, 7);  //  1
echo min(array(2, 4, 5)); //  2 

$val =  min(array(2, 4, 8), array(2, 5, 1)); // array(2, 4, 8 )

?>