73     protected $grpsusers = [];  variable in auth_plugin_authad
416                 if (!isset($this->grpsusers[$this->filterToString($filter)])) {
419                     count($this->grpsusers[$this->filterToString($filter)]) <
426                         count($this->grpsusers[$this->filterToString($filter)])
429                 $result = $this->grpsusers[$this->filterToString($filter)];
479         if (isset($this->grpsusers[$this->filterToString($filter)])) {
480             $actualstart = count($this->grpsusers[$this->filterToString($filter)]);
482             $this->grpsusers[$this->filterToString($filter)] = [];
497                 $this->grpsusers[$this->filterToString($filter)][$user] = $info;
550                 !isset($this->grpsusers[$this->filterToString($filter)]) ||
551                 count($this->grpsusers[$this->filterToString($filter)]) < ($start + $limit)
553                 if (!isset($this->grpsusers[$this->filterToString($filter)])) {
554                     $this->grpsusers[$this->filterToString($filter)] = [];
559                     $start + $limit - count($this->grpsusers[$this->filterToString($filter)]) + 1
562             if (!$this->grpsusers[$this->filterToString($filter)]) return [];
563             foreach ($this->grpsusers[$this->filterToString($filter)] as $user => &$info) {