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How to find the average of an array in php

青灯夜游
青灯夜游Original
2022-04-29 20:03:206446browse

Steps to calculate the average value of php array: 1. Use array_sum() to calculate the sum of all elements in the array, the syntax is "array_sum($arr)"; 2. Use count() to get the number of elements in the array , syntax "count($arr)"; 3. Use the "elements and/number of elements" statement to calculate the array average.

How to find the average of an array in php

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

php array averaging Value method

Implementation idea:

  • Calculate the sum of all elements in the array

  • Get The number of elements in the array, that is, the length of the array

  • Divide the sum of elements by the length of the array to calculate the average

Implementation steps :

  • Use array_sum() to calculate the sum

  • Use count() to calculate the number of elements

  • Use the "/" operator to find the average, the syntax is "elements and/number of elements"

Implementation example:

<?php 
header("content-type:text/html;charset=utf-8");
$arr=array(1,2,3,4,5,6,7,8,9,10);
var_dump($arr);
$sum=array_sum($arr);
echo "数组元素和:".$sum."<br>";
$len=count($arr);
echo "数组长度:".$len."<br>";
$average=$sum/$len;
echo "数组平均值:".$average."<br>";
?>

How to find the average of an array in php

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