find_max_and_min.php

<?php

$nums = [10, 5, 253, 54, 4];
$max = $nums[0];
$min = $nums[0];
$count = count($nums) - 1;

foreach(range(0, $count) as $i) {
	if ($nums[$i] > $max) {
		$max = $nums[$i];
	}

	if ($nums[$i] <= $min) {
		$min = $nums[$i];
	}
}

echo "Min is: " . $min . PHP_EOL;
echo "Max is: " . $max;