What is the php array sum function?

PHP is a very popular programming language, and arrays are one of the very important data types. In PHP, there are many array functions that can be used to perform some important operations on arrays, including summation functions.

The array sum function in PHP can sum the elements in the array. This is a very common operation. Let’s take a look at how to use this function.

First, we need to define an array, that is, which array to sum.

$numbers = array(1, 2, 3, 4, 5);

The above code defines a $numbers array, which contains 5 numeric elements.

Then we can use the array_sum() function to sum the array.

$sum = array_sum($numbers);

In the above code, the $sum variable will be assigned the value of the sum of all elements in the array $numbers. In this example, its value will be 15.

The following is the sample code:

$numbers = array(1, 2, 3, 4, 5);

$sum = array_sum($numbers);
echo "数组元素总和是: " . $sum;

The output after the code is executed:

数组元素总和是: 15

As you can see, using the PHP array sum function is very simple, just pass in Just take the array parameter and receive its return value.

In addition to using the array_sum() function to sum, we can also use the foreach statement to sum. The foreach statement can traverse each element in the array and then perform some operations.

For example, the following code uses the foreach statement to perform a sum operation on an array:

$numbers = array(1, 2, 3, 4, 5);
$sum = 0;

foreach ($numbers as $value) {
    $sum += $value;
}

echo "数组元素总和是: " . $sum;

The output result after the code is executed:

数组元素总和是: 15

Using the PHP array sum function Arrays can be summed quickly and easily, and the foreach statement can also be used to implement summation.

Summary: In PHP, arrays are a very commonly used data type, and performing various operations on arrays is unavoidable in our development. Array summation is a very commonly used operation in PHP. We introduced the method of using array_sum() function and foreach statement to implement array summation.

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