PHP duplicates in nested multidimensional array to combine certain value - php

Question

The desired output is to have:
{"userId":1,"email":"example#email.com","first":"Tyler","last":"Kanz","groups":[{"groupId":"1","groupName":"GROUP A","groupRoles":["1", "3"]},{"groupId":"2","groupName":"GROUP B","groupRoles":["2"]}]}
Which would compare the Group IDs and combine duplicates with their Group Roles.
I have tried using,
foreach ($groups as $group) {
if ($group['groupId'] == $group_id) {
array_push($group['groupRoles'], $group_role);
//And then unsetting the array
}
It is just adding all of the Groups/Roles into the Group array onto the Groups Array.
array(3) { ["groupId"]=> string(1) "1" ["groupName"]=> string(5)
"GROUP A" ["groupRoles"]=> array(1) { [0]=> string(1) "1" } } array(3) {
["groupId"]=> string(1) "2" ["groupName"]=> string(10) "GROUP B"
["groupRoles"]=> array(1) { [0]=> string(1) "2" } } array(3) {
["groupId"]=> string(1) "1" ["groupName"]=> string(5) "GROUP A"
["groupRoles"]=> array(1) { [0]=> string(1) "3" } }
{"userId":1,"email":"example#email.com","first":"Tyler","last":"Kanz","groups":[{"groupId":"1","groupName":"IRISS","groupRoles":["1"]},{"groupId":"2","groupName":"GROUP B","groupRoles":["2"]},{"groupId":"1","groupName":"GROUP A","groupRoles":["3"]}]}
foreach ($groupmeta as $value) {
$group_roles = array();
$array = unserialize($value['property_value']);
if ($array[0] == $user_ID) {
//Gets Group ID and Role
$group_id = $value['group_id'];
$group_role = $array[1];
$exists = false;
$group_name_q= json_decode(json_encode($wpdb->get_results($wpdb->prepare('SELECT group_name FROM groups WHERE id=%s', $group_id))), true);
$group_name = $group_name_q[0]['group_name'];
echo $group_role;
echo '<br>';
$group_roles[] = $group_role;
$group_info = array(
'groupId'=>$group_id,
'groupName'=>$group_name,
'groupRoles'=>$group_roles,
);
$groups[] = $group_info;
}
}
$sorted_groups = array();
echo '<br>';
}
$return_arr = array(
"userId"=>$user_ID,
"email"=>$user_email,
"first"=>$user_first,
"last"=>$user_last,
"groups"=>$groups
);
echo json_encode($return_arr);
//var_dump($groupmeta_value);
}

Answer 1

Found an answer, FOREACH runs as a cloned object.
Instead I used the following FOR loop and got the desired results.
$found_group = false;
for ($i = 0; $i < count($groups); $i++) {
if ($groups[$i]['groupId'] == $group_id) {
array_push($groups[$i]['groupRoles'], $group_role);
$found_group = true;
}
}
if (!$found_group) {
//Group Name
$group_name_q= json_decode(json_encode($wpdb->get_results($wpdb->prepare('SELECT group_name FROM groups WHERE id=%s', $group_id))), true);
$group_name = $group_name_q[0]['group_name'];
$group_roles[] = $group_role;
$group_info = array(
'groupId'=>$group_id,
'groupName'=>$group_name,
'groupRoles'=>$group_roles,
);
$groups[] = $group_info;
}