phpeveryday.com

<?php
//define number series
$series = array(76, 7348, 56, 2.6, 189, 67.59, 17594, 2648, 1929.79,↵
54, 329, 820, -1.10, -1.101);

//sort array
sort($series);

//extract maximum/minimum value from sorted array
//result: "Minimum is -1.101 "
$min = $series[0];
echo "Minimum is $min ";

//result: "Maximum is 17594"
$max = $series[sizeof($series)-1];
echo "Maximum is $max";
?>

There are many ways in finding the smallest or larger value in a number series. In the above, the list demonstrates one of the simplest. The numbers are placed in an array and the sort( ) function is used to sort the array so that the numbers line up sequentially. The smallest value will end up at the beginning of the list while the largest will end up at the end of the list.