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.
<?php header('content-type:text/html;charset=utf-8'); $a1=array(1,2,3,4,5,0); $a2=array(6,7,8,9,10); $arr=array_merge($a1,$a2); var_dump($arr); ?>
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
<?php header('content-type:text/html;charset=utf-8'); $a1=array(1,2,3,4,5,0); $a2=array(6,7,8,9,10); $arr=array_merge($a1,$a2); var_dump($arr); $sum=array_sum($arr); echo "合并数组的元素总和为:".$sum; ?>
Description:
##array_sum() Function calculation array The sum of all elements in
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