Find and count specific value from array

Question

I have pass trough array to get all ROLE field results from db.

Not I need to search them to find just ROLE_ADMIN roles and count them.

"users": [
    [
        "ROLE_SUPER_ADMIN"
    ],
    [
        "ROLE_STRATEGIST",
        "ROLE_ADMIN"
    ],
    [
        "ROLE_EDITOR"
    ],
    [
        "ROLE_STRATEGIST",
        "ROLE_ADMIN"
    ],
]

And this is my code:

$users = $this->entityManager->getRepository(User::class)->findAll();

    $countUsers = [];
    foreach ($users as $user) {
        $countUsers[] = $user->getRoles();
    }

    return $countUsers;

Is there a way to go trough array and count all ROLE_ADMIN results?

Something like $role_admin_counter += in_array('ROLE_ADMIN', $user->getRoles()) ? 1 : 0; …? — 04FS
– 04FS, Commented Sep 29, 2020 at 9:26

jspit · Accepted Answer · 2020-09-29 10:46:28Z

1

If the input is available as an array as shown, it can also be implemented with the array_reduce function.

$users = [
    ["ROLE_SUPER_ADMIN"],
    ["ROLE_STRATEGIST","ROLE_ADMIN"],
    ["ROLE_EDITOR"],
    ["ROLE_STRATEGIST","ROLE_ADMIN"],
];

$role = 'ROLE_ADMIN';
$count = array_reduce(
  $users,
  function($carry,$item) use($role){return $carry + (int)in_array($role,$item);},
  0
);

var_dump($count); //int(2)

answered Sep 29, 2020 at 10:46

jspit

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