PHP function to add user to usergroup Contao 3.5

Hello Community,

I am trying to make e PHP function that will run when a hook is triggered.

The function must add a user to a user-group.

This is what i have so far

PHP Code:

---

$userId = $arrData["member_id"];
$groupId = "3";

$groups = $this->Database->prepare('SELECT groups FROM tl_member WHERE id=?')->execute($userId)->next()->groups;

$groups = unserialize($groups);
array_push($groups, $groupId);
$groups = serialize($groups);

$this->Database->prepare('UPDATE tl_member %s WHERE id=?')->set(array('groups' => $groups))->execute($userId); 


---

This will update the user-group,
But do i need to add an entry to "tl_member_to_group" because there is no entry and when i add someone to a user-group in the backend it will add it also to "tl_member_to_group"

Don't know "tl_member_to_group". But handling of members, users and groups is easy if you use the models:
https://github.com/contao/core/blob/...el.php#L14-L35

Also interesting:
https://github.com/contao/core/blob/...ontendUser.php

Also take a look at the models tutorial in contao docs.

Please show PHP-code as PHP:

PHP Code:

---

$userId = $arrData["member_id"];
$groupId = "3";

$groups = $this->Database->prepare('SELECT groups FROM tl_member WHERE id=?')->execute($userId)->next()->groups;

#$groups = unserialize($groups);
$groups = deserialize($groups);
array_push($groups, $groupId);
$groups = serialize($groups);

$this->Database->prepare('UPDATE tl_member %s WHERE id=?')->set(array('groups' => $groups))->execute($userId); 


---

Thanks,

I have found out that the "tl_member_to_group" is for development only.
See : https://github.com/friends-of-contao...ssociategroups

Thanks for the hint of user models and for the deserialize change.

unserialize() ist PHP, deserialize() is a modified function by Contao.