How to merge and sum two arrays in php

Implementation method: 1. Use the array_merge() function to merge two arrays. The syntax "array_merge(array 1, array 2)" will return a merged array containing the elements in the two arrays; 2. Use array_sum The () function calculates and returns the sum of all elements in the merged array, the syntax is "array_sum (merged array)".

The operating environment of this tutorial: windows7 system, PHP version 8.1, DELL G3 computer

php realizes the merging of two arrays and The sum can be seen as two parts:

• php implements the merger of two arrays

• php implements the sum of the merged arrays

Implementation steps:

Step 1: Use the array_merge() function to merge two arrays

array_merge() function is used to merge one or more arrays into one array, and will return a merged array containing two array elements

Note: If two or more array elements have the same key name, the last element will overwrite other elements.

Step 2: Use the array_sum() function to implement the sum of merged arrays

array_sum($arr) function can be calculated The sum of all elements in array $arr

Description:

##array_sum()Function calculation array The sum of all elements in

• If all elements of array arr are integers, an integer value is returned; if one or more of the values are floating point numbers, a floating point number is returned.

• If there are non-numeric elements in the array arr, PHP will try to convert them to a numeric value, and if the conversion fails, it will be treated as a 0 value. For example, the string "45" will be converted to the integer 45, and the string "12.4abc" will be converted to the decimal 12.4.

PHP Video Tutorial"

The above is the detailed content of How to merge and sum two arrays in php. For more information, please follow other related articles on the PHP Chinese website!