Discussion on: Never use array_merge in a loop in PHP

View post

Replies for: This solution is pretty cool, however if you have an array of objects this solution won't work anymore. Say you have a list of users and each use ...

In this case, you have to do a intermediate process

$accounts = [];
foreach ($users as $user) {
    $accounts[] = $user['socialMediaAccounts'];
}

$accounts = array_merge([], ...$accounts);

A fancy way:

$accounts = array_map(static function($user){
    return $user['socialMediaAccounts'];
}, $users);

$accounts = array_merge([], ...$accounts);