Following is program to find minimum number from an array: <?php $numbers=array(12,23,45,20,5,6,34,17,9,56); $length=count($numbers); $min=$numbers[0]; for($i=1;$i<$length;$i++) { if($numbers[$i]<$min) { $min=$numbers[$i]; } } echo "The smallest number is ".$min; ?>