add elements of associative array with same key - php

Question

I have associative array like this
$min_stats=
array(2)
{
[0]=> array(3)
{
["minute"]=> object(MongoInt64)#13 (1)
{
["value"]=> string(8) "10"
}
["add"]=> object(MongoInt64)#14 (1)
{
["value"]=> string(1) "9"
}
["tag"]=> object(MongoInt64)#15 (1)
{
["value"]=> string(1) "4"
}
}
[1]=> array(3)
{
["minute"]=> object(MongoInt64)#13 (1)
{
["value"]=> string(8) "11"
}
["add"]=> object(MongoInt64)#14 (1)
{
["value"]=> string(1) "9"
}
["tag"]=> object(MongoInt64)#15 (1)
{
["value"]=> string(1) "5"
}
}
} Array
Now I want to combine all the key-value pair in the array to get one array.
The resulting array should be
array(11)
{
["minute"]=> int(21)
["add"]=> int(18)
["tag"]=> int(9)
} Array
so for what I have written is
foreach ($min_stats as $k=>$subArray) {
foreach ($subArray as $id=>$value) {
$sumArray[$id]+=$value;
}
}
but its not giving me correct results, I don't know what I'm doing wrong?
The $value is coming as 2 means its just counting the elements in the subarray.
Thanks in advance for the help.

Answer 1

You can do it like this:
$finalArr = array();
foreach($array as $k1 => $v1){
foreach($v1 as $k2=>$v2){
if(!isset($finalArr[$k2])){
$finalArr[$k2] = 0;
}
$finalArr[$k2] += $v2['value'];
}
}
print_r($finalArr);
Output:
Array
(
[minute] => 21
[add] => 18
[tag] => 9
)
Easy copy array for testing:
$array = array(
array(
'minute' => array(
'value' => '10'
),
'add' => array(
'value' => '9'
),
'tag' => array(
'value' => '4'
),
),
array(
'minute' => array(
'value' => '11'
),
'add' => array(
'value' => '9'
),
'tag' => array(
'value' => '5'
),
)
);