I have a result from laravel-mongodb query, I don't know how to parse this arrays,

as you can see in this collection , in "taggeduser" I have "-storage" array and i just want to get username's inside storage array in every collections, I wrote this code but it's a mess and not working,
foreach ($tagged as $tags){
$temp = $tags['taggeduser'];
foreach ($temp as $key => $value){
$users[] = $value
}
}
returns all values, and i can't access to 'username' field in foreach,
