? PHP array_sum() & array_product()

? Quick Overview

In PHP, the array_sum() and array_product() functions are used to calculate the sum and product of the values in an array. These functions are especially useful when working with numeric data collections.

? Key Concepts

• array_sum() Adds all numeric values in an array
• array_product() Multiplies all numeric values in an array
• Works with indexed and associative arrays

? Syntax / Theory

• array_sum(array $array): number
• array_product(array $array): number

? Example 1: Using array_sum()

// Calculate sum of numeric array values
<?php
$numbers = array(1, 2, 3, 4, 5);
$sum = array_sum($numbers);
echo $sum;
?>

? Example 2: Using array_product()

// Calculate product of numeric array values
<?php
$numbers = array(1, 2, 3, 4, 5);
$product = array_product($numbers);
echo $product;
?>

? Example 3: array_sum() with Associative Array

// Sum values from an associative array
<?php
$prices = array("apple" => 1.2, "banana" => 0.8, "cherry" => 2.5);
$total = array_sum($prices);
echo $total;
?>

➕ Example 4: Combining Sum and Product

// Combine sum and product results
<?php
$values = array(2, 3, 4);
$sum = array_sum($values);
$product = array_product($values);
$total = $sum + $product;
echo $total;
?>

? Interactive Visualization

Visualizing numbers being summed or multiplied

? Use Cases

• Total price calculation in shopping carts
• Score aggregation systems
• Statistical data processing