PHP Array combine using one column value - php

Question

I am trying to combine two Arrays with one common column.But, not getting exactly what I want. Please check the below requirement.
Array 1
Array
(
[0] => stdClass Object
(
[fieldLabel] => fname
[uuid] => 27478
)
[1] => stdClass Object
(
[fieldLabel] => Lname
[uuid] => 6103
)
[2] => stdClass Object
(
[fieldLabel] => Country
[uuid] => 7350
)
[3] => stdClass Object
(
[fieldLabel] => check1
[uuid] => 23155
)
[4] => stdClass Object
(
[fieldLabel] => radio1
[uuid] => 15664
)
)
Array 2
Array
(
[0] => stdClass Object
(
[uuid] => 27478
[value] => sai1
)
[1] => stdClass Object
(
[uuid] => 6103
[value] => sai2
)
[2] => stdClass Object
(
[uuid] => 7350
[value] => USA
)
[3] => stdClass Object
(
[uuid] => 23155
[value] => USA|India
)
)
I need output like the below. Both arrays 'UUID' is common. If value not there in second array it should be empty.
Array
(
[0] => stdClass Object
(
[fieldLabel] => fname
[uuid] => 27478
[value] =>sai1
)
[1] => stdClass Object
(
[fieldLabel] => Lname
[uuid] => 6103
[value] =>sai2
)
[2] => stdClass Object
(
[fieldLabel] => Country
[uuid] => 7350
[value] =>USA
)
[3] => stdClass Object
(
[fieldLabel] => check1
[uuid] => 23155
[value] =>USA|India
)
[4] => stdClass Object
(
[fieldLabel] => radio1
[uuid] => 15664
)
)
Please provide your suggestions. How can I achieve.

Answer 1

You can traverse those arrays and make changes like below :
foreach ($array1 as &$a1val) {
$value = 0;
foreach ($array2 as $a2val) {
if($a1val->uuid == $a2val->uuid) {
$value = $a2val->value;
break;
}
}
$a1val->value = $value;
}
P.S. :
& is used to update $array1 by reference.

Answer 2

foreach($arr1 as $key1 => val1){
foreach($arr2 as $key2 => $val2){
if($val1['uuid'] == $val2['uuid']){
$arr1[$key1]['value'] = $val2['value'];
}
}
}
print_r($arr1); // this should give desire output