Adldap\Models\Model::setAttribute PHP Method

    public function setAttribute($key, $value, $subKey = null)
    {
        // Normalize key.
        $key = $this->normalizeAttributeKey($key);
        // If the key is equal to 'dn', we'll automatically
        // change it to the full attribute name.
        $key = $key == 'dn' ? $this->schema->distinguishedName() : $key;
        if (is_null($subKey)) {
            $this->attributes[$key] = is_array($value) ? $value : [$value];
        } else {
            $this->attributes[$key][$subKey] = $value;
        }
        return $this;
    }