Building an array in nested foreach loops in Laravel controller - php

Question

I am trying to build an array of user ids from a long eloquent relationship, using nested foreach loops in a Laravel controller, but can't get it to work.
Users can have publishers, those publishers can have teams and each team has members. Users can be in multiple teams so I also need to remove duplicate IDs.
I want to end up with a count to see how many team members are associated with a user.
In my user model
public function publishers()
{
return $this->belongsToMany('App\Publisher')->withTimestamps();
}
In my publisher model
public function teams()
{
return $this->belongsToMany('App\Team')->withTimestamps();
}
and in my team model
public function members()
{
return $this->belongsToMany('App\User')->withPivot('status', 'title', 'team_role_ids')->withTimestamps();
}
and in my profile controller
foreach ($user->publishers as $userPublisher) {
foreach ($userPublisher->teams as $publisherTeam) {
$teamUserIds[] = $publisherTeam->members->pluck('id')->toarray();
}
}
$deDupedIds = array_unique($teamUserIds, SORT_NUMERIC);
$idsCount = count($deDupedIds);
But I'm getting multiple arrays and not just one compiled array and the count isn't working. Any idea what I'm doing wrong?

Answer 1

You are assigning a new array into $teamUserIds each iteration. That's why you are getting multiple arrays.
$teamUserIds = [];
foreach ($user->publishers as $userPublisher) {
foreach ($userPublisher->teams as $publisherTeam) {
$teamUserIds = array_merge($teamUserIds, $publisherTeam->members->pluck('id')->toarray());
}
}
$deDupedIds = array_unique($teamUserIds, SORT_NUMERIC);
$idsCount = count($deDupedIds);

Answer 2

you are adding arrays of id $publisherTeam->members->pluck('id')->toarray(); as a new index in $teamUserIds . but what you want to do is to merge the array of ids
so your code would be like this :
foreach ($user->publishers as $userPublisher) {
foreach ($userPublisher->teams as $publisherTeam) {
$teamUserIds = array_merge($teamUserIds , $publisherTeam->members->pluck('id')->toarray());
}
}
$deDupedIds = array_unique($teamUserIds, SORT_NUMERIC);
$idsCount = count($deDupedIds);