Two ways to calculate the sum of two arrays in PHP

When developing websites and applications, it is often necessary to perform calculations on arrays. Calculating the sum of an array is a basic operation, especially important for PHP developers. This article will introduce two methods of calculating the sum of two arrays in PHP.

Method 1: Use the array_sum() function

The array_sum() function in PHP is used to calculate the sum of all numbers in the array. It can accept an array as a parameter and return the sum of all numbers in the array.

The following is an example of using the array_sum() function to calculate the sum of two arrays:

$array1 = array(1, 2, 3, 4, 5);
$array2 = array(6, 7, 8, 9, 10);

$sum = array_sum($array1) + array_sum($array2);

echo "两个数组的总和为：".$sum;

In the above code, we have created two arrays $array1 and $array2. Next, we use the array_sum() function to calculate the sum of $array1 and $array2 respectively, and add them together to get the final sum $sum. Finally, use the echo statement to output the total result.

Method 2: Calculate using a loop

Another way to calculate the sum of two arrays is to use a loop. We can use a for loop to iterate through each array and then add up the variables at their corresponding positions. Here is an example of calculating the sum of two arrays using a loop:

$array1 = array(1, 2, 3, 4, 5);
$array2 = array(6, 7, 8, 9, 10);

$sum = 0;

for ($i = 0; $i < count($array1); $i++) {
    $sum += $array1[$i];
}

for ($i = 0; $i < count($array2); $i++) {
    $sum += $array2[$i];
}

echo "两个数组的总和为：".$sum;

In the above code, we have created two arrays $array1 and $array2. Next, we loop through each array and add up the variables at their corresponding positions and store them in the variable $sum. Finally, use the echo statement to output the total result.

Summary

The above are two methods of calculating the sum of two arrays in PHP. Using the array_sum() function is simple and fast, and is suitable for operating on large amounts of data. Although the method of using loop calculation is more cumbersome, it is suitable for operating on small-scale data. In actual development, which method to use should be chosen based on actual needs and the size of the data.

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