Rewrite group_info to query a group for more than 1500 people in a group on WS 2012 DCs

adLDAP-group_info.php

public function group_info($group_name,$fields=NULL){
        if ($group_name===NULL){ return (false); }
        if (!$this->_bind){ return (false); }
        
        if (stristr($group_name, '+')) {
            $group_name=stripslashes($group_name);   
        }
        
        $filter="(&(objectCategory=group)(name=".$this->ldap_slashes($group_name)."))";
        //echo ($filter."!!!<br>");
        if ($fields===NULL){ $fields=array("member","memberof","cn","description","distinguishedname","objectcategory","samaccountname"); }
        $sr=ldap_search($this->_conn,$this->_base_dn,$filter,$fields);
        $entries = ldap_get_entries($this->_conn, $sr);

        // Windows 2003: Returns up to 1500 values (Windows 2000 only 1000 is not supported).
        if ($entries[0]['member;range=0-1499']['count'] == 1500) {
            echo "Got more than 1500...";
            $entries[0]['member']['count'] = "0";
            $rangestep = 1499;     // Step site
            $rangelow  = 0;        // Initial low range
            $rangehigh = $rangelow + $rangestep;     // Initial high range
            // do until array_keys($members[0])[0] ends with a '*', e. g. member;range=1499-*. It indicates end of the range
            do {
              echo "In member search loop bizniz...";
              echo "Range low: $rangelow, to $rangehigh";
                $sr = ldap_search($this->_conn, $this->_base_dn, $filter, array("member;range=" . $rangelow . "-" . $rangehigh));
                $members = ldap_get_entries($this->_conn, $sr);
                $memberrange = array_keys($members[0]);
                $membercount = $members[0][$memberrange[0]]['count'];
                // Copy range entries to member
                for ($i = 0; $i <= $membercount -1; $i++) {
                    $entries[0]['member'][] = $members[0][$memberrange[0]][$i];
                }
                $entries[0]['member']['count'] += $membercount;
                $rangelow  += $rangestep +1;
                $rangehigh += $rangestep +1;
            } while (substr($memberrange[0], -1) != '*');
        }
        //print_r($entries);
        return ($entries);
    }