aglipanci / laravel-auditing

src/Resolvers/UserAgentResolver.php

<?php

namespace OwenIt\Auditing\Resolvers;

use Illuminate\Support\Facades\Request;

class UserAgentResolver implements \OwenIt\Auditing\Contracts\UserAgentResolver
{
    /**
     * {@inheritdoc}
     */
    public static function resolve()
    {
        return Request::header('User-Agent');

The expression return Illuminate\Support\Facades\Request::header('User-Agent') also could return the type array which is incompatible with the return type mandated by OwenIt\Auditing\Contracts\UserAgentResolver::resolve() of null|string.

    }
}