How to find the difference between the maximum value and the minimum value of an array in php

Steps to find the difference: 1. Use the max() function to get the maximum value of the array, the syntax "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 to calculate the difference. The syntax is "maximum value - minimum value".

The operating environment of this tutorial: windows7 system, PHP8.1 version, DELL G3 computer

php finds the largest array Method of difference between value and minimum value

In PHP, you can use the max() and min() functions to find the maximum and minimum values ​​of the array, and then combine the maximum and minimum values Subtract to find the difference.

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");
$arr = array(2,3,4,5,67,8,32,1,23,45,0); 
var_dump($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

$min=min($arr);
echo "数组最小值为： ".$min;

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

最大值 - 最小值

Complete implementation example code:

<?php
header("Content-type:text/html;charset=utf-8");
$arr = array(2,3,4,5,67,8,32,1,23,45,0); 
var_dump($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-$min;
echo "数组最大值和最小值的差值为：".$res;
?>

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