user.php

См. документацию.

<?php
namespace Bitrix\Im\Integration\UI\EntitySelector\Helper;
 
use Bitrix\Main\EO_User;
 
class User
{
    public static function formatName(EO_User $user, array $options = []): string
    {
        return \CUser::formatName(
            !empty($options['nameTemplate'])
                ? $options['nameTemplate']
                : \CSite::getNameFormat(false),
            [
                'NAME' => $user->getName(),
                'LAST_NAME' => $user->getLastName(),
                'SECOND_NAME' => $user->getSecondName(),
                'LOGIN' => $user['LOGIN'],
                'EMAIL' => $user['EMAIL'],
                'TITLE' => $user['TITLE'],
            ],
            true,
            false
        );
    }
 
    public static function makeAvatar(EO_User $user): ?string
    {
        if (empty($user->getPersonalPhoto()))
        {
            return null;
        }
 
        $avatar = \CFile::resizeImageGet(
            $user->getPersonalPhoto(),
            ['width' => 100, 'height' => 100],
            BX_RESIZE_IMAGE_EXACT,
            false
        );
 
        return !empty($avatar['src']) ? $avatar['src'] : null;
    }
 
    public static function getCurrentUserId(): int
    {
        return is_object($GLOBALS['USER']) ? (int)$GLOBALS['USER']->getId() : 0;
    }
}