How to find the average total score in php array

How to calculate the average total score in a php array: 1. Create a PHP sample file; 2. Define an array $scores containing integer values; 3. Use the "count()" function to get the values ​​of the elements in the array The quantity is stored in the variable $count; 4. Define the total score variable $sum and use the "array_sum()" function to calculate the sum of the array elements; 5. Define the average score variable $average and divide the sum by the number of elements to get the average score ;6. Output $sum and $average.

Operating system for this tutorial: Windows 10 system, php8.1.3 version, Dell G3 computer.

How to calculate the average score of a php array:

1. Use the count function to get the number of elements in the array.

2. Use the array_sum function to calculate the sum of array elements.

3. Divide the sum by the number of elements to get the average score.

The following is a code example:

<?php
$scores = array(85, 90, 78, 89, 92);
// 计算平均分和总分
$count = count($scores);
$sum = array_sum($scores);
$average = $sum / $count;
echo "总分：" . $sum . "<br>";
echo "平均分：" . $average;
?>

The output result is:

总分：434
平均分：86.8

Among them, the array $scores contains five scores, using the count() function Get the length of an array and use the array_sum() function to calculate the sum of all elements. Finally divide the sum by the number of elements to get the average score.

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