how to pass an array from PHP

[volderon 99]

calehdar.php


function read_event($start,$end){

mysql_query("SET NAMES 'utf8'");
$query = "SELECT * FROM events";
$result = mysql_query($query);
    $strok=mysql_num_rows($result);
    $i=0;
   if (!$result) {
      echo "DB Error, could not query the database\n";
      echo 'MySQL Error: '.mysql_error();
      exit;
   }

   $events = array();
    echo '{events:['."\n";

    while ($row = mysql_fetch_assoc($result)) {
        $eventArray['id'] = $row['id'];
        $eventArray['start'] =  date('Y',$row['start']).", ".(date('m',$row['start'])-1).", ".date('d, H, i',$row['start']);
        $eventArray['end'] = date('Y',$row['end']).", ".(date('m',$row['end'])-1).", ".date('d, H, i',$row['end']);
        $eventArray['title'] = $row['title'];
        $eventArray['body'] = $row['body'];
        $eventArray['user_id'] = $row['user_id'];

        $events[] = $eventArray;

        echo '{"id":'.$events[$i]['user_id'].',"start": new Date('.$events[$i]['start'].'),
        "end": new Date('.$events[$i]['end'].'),"title":"'.$events[$i]['title'].'",
        "body":"'.$events[$i]['body'].'","userId":'.$events[$i]['user_id'].'}';

        if ($strok > 1) {
            echo ',';
            $rez=$rez.',';
                             }
              $strok--;
              $i++;
                                   }
       echo ']}';
}


There is a script PHP returns a string:

{events:[
{"id":0,"start": new Date(2016, 7, 04, 11, 00),
        "end": new Date(2016, 7, 04, 11, 45),"title":"ccc",
        "body":"bbb","userId":0}]}

But in data: this miss



 data: 
        
        function(data) {
        $.ajax(
            {
                url: 'calendar.php?op=read_event',
                dataType: 'html',
                success: function (data) {
                    var events = eval(data);
                    return(events);
                }

                });

    }


});

Tell me how to get the data from PHP.