how to get the sum of the values of two array inside an array?

Question

Here is the sample array and I really can't solved it on my own.

I want to add the values of two different array but I really don't know how

Is that possible to add those two values of array??

Here is my sample code that I have used array_sum() but I end up getting only the values(not the sum of the values)

foreach ($_GET['Reservation'] as $key => $value) {
    foreach ($value as $key2 => $value2) {

        foreach ($value2 as $key3 => $value3) {


            echo array_sum($value2);

        }

    }

}

Narendrasingh Sisodia · Accepted Answer · 2015-08-31 14:35:56Z

2

Within your foreach loop you can simply use + operator, as you don't need array_sum over here. array_sum is used for summation of array and not strings. So your simplified code is as follows

$arr = ['Reservation' => [3=>[56 => [2],57 => [2]],5=>[43 => [1]]]];
$res = '';
$i = 0;
foreach ($arr['Reservation'] as $key => $value) {
    foreach($value as $v)
        $res[$key] += $v[0];
}
print_r($res);

Output:

Array
(
    [3] => 4
    [5] => 1
)

edited Aug 31, 2015 at 14:35

answered Aug 31, 2015 at 14:07

Narendrasingh Sisodia

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5 Comments

Benjamin Española Over a year ago

thank you sir but it didnt work well in my case,.here is the 2nd example of my array 'Reservation' => array ( 3 => array ( 56 => array ( 0 => '2', ), 57 => array ( 0 => '2', ), ), 5 => array ( 43 => array ( 0 => '1', ), ), ) and the result is 4 then 5,..the expected answer should be 4 then 1

Benjamin Española Over a year ago

here is the explanation of my array sir: 'Reservation' => array ( 3 => array ( 56 => array ( 0 => '2', ), 57 => array ( 0 => '2', ), ), 5 => array ( 43 => array ( 0 => '1', ), ), ) The number 3 is my RoomTypeID and the 56 and 57 is the RoomNo. of the RoomTypeID(the number 3) and the 2 and 2 values are the number of guest. so foreach RoomTypeID it can have many RoomNo. and in every RoomNo. has number of guest and what i want is the total of the number of guest foreach RoomTypeID

Narendrasingh Sisodia Over a year ago

Updated answer have a look

Benjamin Española Over a year ago

thanks a lot sir it works now :D although i have some errors like this Notice: Undefined Offset i think i can just ignore those, thanks again sir i can now proceed to another page of my thesis :D

Benjamin Española Over a year ago

but i can now insert those values in my database and works correctly so i think i could just ignore those notices since it wont be seen by the user,.should I still need to solve those notices sir?

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