我有两个数组" result from the SQL query"
第一个数组
Array ( [0] => 100 ) Array ( [0] => 200)
第二个数组
Array ( [0] => 300 ) Array ( [0] => 400)
如何分别计算每个数组(100 + 300)的第一个元素和第二个数组(200 + 400)的第二个元素?
$sum = array();
for ($i=0;$i<count(array1);$i++) {
$sum[$i] = array1[$i] + array2[$i];
}
print_r($sum);
= = = = = = = = = = =
<?php
$a = array(2, 4, 6, 8);
echo "sum(a) = " . array_sum($a) . "'n";
$b = array("a" => 1.2, "b" => 2.3, "c" => 3.4);
echo "sum(b) = " . array_sum($b) . "'n";
?>