yu asked this 2 years ago

php , add previous sub-array value to to next sub-array value

<?php

$arr = [ [1,2,4], [4,2,6], [2,1,8] ];

// in each sub-array's end elemnent

//add previous sub-array's end-element

how to do with for iteration

Noel 2 years ago

Here you go..,

<?php

$arr = [ [1,2,4], [4,2,6], [2,1,8] ];

$sum = 0;

foreach ($arr as $subarray) {

$last_element;

foreach ($subarray as $val) {

$last_element = $val;

}

$sum = $sum + $last_element;

}

echo $sum;