How to sum array values ​​in php

php array values ​​can use loop structures to traverse the array, array_sum() function, array_reduce() function, array_walk() function, etc. for summation. Detailed introduction: 1. Loop structure to traverse the array, define an array containing numbers, initialize the sum to 0, use a foreach loop to traverse each element in the array, add each element to the sum, and output the sum; 2. The array_sum() function defines an array containing numbers, etc.

The operating environment of this tutorial: windows10 system, php8.1.3 version, DELL G3 computer.

PHP is a widely used server-side scripting language that provides rich array operation functions. In PHP, you can use arrays to store a set of related data and perform various operations on these data. One of them is to sum the values ​​in an array.

1. In PHP, you can use a loop structure to traverse each element in the array and add them to get the sum. The following is a sample code:

// 定义一个包含数字的数组
$numbers = array(1, 2, 3, 4, 5);
// 初始化总和为0
$sum = 0;
// 使用foreach循环遍历数组中的每个元素
foreach ($numbers as $number) {
// 将每个元素加到总和中
$sum += $number;
}
// 输出总和
echo "数组中的值的总和为：" . $sum;
?>

In the above code, an array $numbers containing numbers is first defined, and then the sum $sum is initialized to 0. Next use a foreach loop to iterate through each element in the array, adding each element to the sum. Finally, use the echo statement to output the sum.

Run the above code, you will get the following output:

数组中的值的总和为：15

2. The above example code just sums a simple array. In fact, PHP's array operation function is very powerful. Handle a variety of complex data structures and algorithms. In addition to using loop structures, you can also use PHP's built-in array functions to sum the values ​​in an array.

For example, you can use the array_sum() function to calculate the sum of all values ​​in an array, as shown below:

// 定义一个包含数字的数组
$numbers = array(1, 2, 3, 4, 5);
// 使用array_sum()函数计算数组中所有值的总和
$sum = array_sum($numbers);
// 输出总和
echo "数组中的值的总和为：" . $sum;
?>

Running the above code, you will get the same output.

In addition to using the array_sum() function, you can also use other array functions to sum the values ​​in the array, such as array_reduce() function, array_walk() function, etc. These functions provide more flexibility and functionality and can be selected and used according to actual needs.

In short, PHP provides rich array operation functions, which can easily sum the values ​​in the array. Whether using a loop structure or using built-in array functions, you can easily sum the values ​​in an array. These features make PHP a powerful tool for processing data and performing numerical calculations .

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