How to find the maximum difference of an array in php

Steps to find the maximum difference of an array: 1. Use the max() function to get the maximum value of the array, the syntax is "max($arr)"; 2. Use the min() function to get the minimum value of the array, the syntax "min($arr)"; 3. Use the "-" operator to subtract the obtained maximum value and minimum value of the array to calculate the maximum difference of the array. The syntax is "maximum value - minimum value".

The operating environment of this tutorial: windows7 system, PHP version 8.1, DELL G3 computer

Method to find the maximum difference of an array : The maximum value of the array minus the minimum value of the array

In PHP, you can use the max(), min() functions and the "-" operator to find the maximum difference of the array.

Implementation steps:

Step 1: Use the max() function to obtain the maximum value of the array

max() function can Return the maximum value in an array

<?php
header("Content-type:text/html;charset=utf-8");
$arr = array(2,3,4,5,67,8,32,1,23,45); 
var_dump($arr);

$max=max($arr);
echo "数组最大值为： ".$max;

?>

Step 2: Use the min() function to get the minimum value of the array

min() The function returns the minimum value in an array

<?php
header("Content-type:text/html;charset=utf-8");
$arr = array(2,3,4,5,67,8,32,1,23,45); 
var_dump($arr);
$max=max($arr);
echo "数组最大值为： ".$max."<br>";

$min=min($arr);
echo "数组最小值为： ".$min."<br>";

?>

Step 3: Use the "-" operator to subtract the obtained maximum value and minimum value to calculate the maximum difference

<?php
header("Content-type:text/html;charset=utf-8");
$arr = array(2,3,4,5,67,8,32,1,23,45); 
var_dump($arr);
$max=max($arr);
echo "数组最大值为： ".$max."<br>";
$min=min($arr);
echo "数组最小值为： ".$min."<br>";

$res=$max-$min;
echo "数组的最大差值为：".$res;
?>

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