How to Calculate the Sum of Values in a PHP Foreach Loop?

How to Sum Values in a PHP Foreach Loop

PHP foreach loops provide an efficient way to iterate over arrays and process their elements. However, if you encounter a scenario where you need to calculate the sum of values within the loop, you may be wondering how to achieve it.

To address this requirement, you can introduce a variable outside the loop to accumulate the values as you iterate through the array. Here's an example:

$sum = 0;
foreach ($group as $key => $value) {
    $sum += $value;
}
echo $sum;

In this code, we define a variable $sum outside the loop and initialize it to 0. Then, we iterate over the $group array. For each element, we add its value to the $sum variable. Finally, after the loop, we echo the accumulated value of $sum.

By incorporating this technique, you can easily calculate the sum of values within a PHP foreach loop, allowing you to perform various calculations and aggregations based on the data in your array.

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