function loadEventAll($uid=0){
    if (isset($_POST['event_log'])){
        $event_log = json_decode($_POST['event_log']); //here event already worked on page
    }
    else $event_log = array();
    for($i=0;$i<25;$i++){
        $now = time();
        $time = $now;//-$this->triggered_timeout;

        //sql to cut already worked event
        $noid = array();
        foreach($event_log as $eve){
            if(isset($eve->id)) $noid[] = 'id<>'.$eve->id;
        }
        if (count($noid)) $noid = ' AND ('.implode(' AND ', $noid).') ';
        else $noid = '';

        //don't try to understand this :)
        $q="SELECT * FROM ig_event WHERE (user_id='$uid' OR user_id=0) AND (((triggered+2>=$time OR triggered=0) AND infinite=0) OR (infinite=1 AND triggered+10<=$time)) AND ($now<time_end or infinite=1) AND time_start<=$time $noid";
        $link = mysql_query($q);
        $arr = array();
        if(!$link){
            sleep(1);
            continue; // if no event occurring start next iteration
        }
        if (mysql_num_rows($link)){
            while ($ddd = mysql_fetch_assoc($link)){
                $id = $ddd['id'];
                if ($ddd['direct_call']!=""){ //call js function on page
                    $arr[] = $ddd['direct_call'].':'.$id.':'.$ddd['param'];

                    if ($ddd['success']!=1){
                        if (!$ddd['infinite']) $succ = ' success=1';else $succ='';
                        $ctime = time();
                        $q = "UPDATE ig_event SET $succ,triggered='$ctime' WHERE id='$id'";
                        mysql_query($q);
                    }
                }
                else{ // usually not used
                    if ($this->load->module($ddd['module'])){
                        if (method_exists($this->$ddd['module'], $ddd['action'])){

                            $time = time();
                            if (($tarr = $this->$ddd['module']->$ddd['action']($ddd['param'])) and !$ddd['infinite']){
                                $q = "UPDATE ig_event SET success=1 WHERE id='$id'";
                                mysql_query($q);
                            }
                        }
                        else{
                            $q = "UPDATE ig_event SET success=1 WHERE id='$id'";
                            mysql_query($q);
                        }
                        $q = "UPDATE ig_event SET triggered='$time' WHERE id='$id'";
                        mysql_query($q);
                        if (!$ddd['infinite']) $arr[] = 'blank'.':'.$id.':';
                    }
                }
            }
            return $arr;
        }
        sleep(1);
    }
    return $arr;
}

id | col1 | col2 | timestamp
------------------------------
 1 | herp | derp | 1347373151
 2 | herp | derp | 1347373152
 3 | herp | derp | 1347373153

$q = "SELECT * FROM `table` WHERE `timestamp` < ".$lastCaughtEventTime;

function poll() {
    $results = [];
    $start = microtime(true);
    $q = "SELECT * FROM `table` WHERE `timestamp` < " . (int) $_POST['timestamp'];
    while (true) {
        $result = mysql_query($q);
        if (mysql_num_rows($result) > 0) {
            $result = returnResults($result);
            break;
        }
        else {
            if (time() - $start > POLLING_TIMEOUT) {
                die('timeout');
            }
            sleep(2);
        }
    }
    echo json_encode($result);
}