php - Add time to datetime and check in if statement -


i stuck. have database colummn datetime in comments table. basicly when user adds new comment it's inserted in table , datetime stored. want check if, lets 1 minute passed since last commented. getting time true in if statement. well. before posted did last check. output not expected. code.

$limits = new limits(); $user = new user(); $time = new datetime();  $time->add(new dateinterval('pt' . 1 . 'm')); $stamp = $time->format('y-m-d h:i:s'); $limit = $limits->check_comment_limit($user->loggedinuser());  if($limit->time < $stamp){ echo 'take brake'; } //for debugging echo $stamp . '<br>';//2014-03-18 13:38:41 echo $limit->time; //2014-03-18 01:37:37

ok obviusly $limit->time smaler $stamp. time() it's simple, time() + 60 how datetime?

i think want do:

<?php  date_default_timezone_set('utc');    // current datetime.  $now = new datetime("now");   // last comment datetime.  $comment = new datetime('2014-03-18 13:26:00');   // interval limit between comments.  $limit = new dateinterval('pt1m');   // calculate difference between current , last commented datetime.  $diff = $now->diff($comment);   // calculate total minutes.  $minutes = $diff->days * 24 * 60;  $minutes += $diff->h * 60;  $minutes += $diff->i;   // debug output  echo $now->format('y-m-d h:i:s').'<br>';  echo $comment->format('y-m-d h:i:s').'<br>';  echo $limit->i.'<br>';  echo $minutes.' minutes <br>';   // limit smaller difference? next comment allowed.  if($limit->i <= $minutes) {     echo "your comment has been saved!";  } else { echo "your aren't allowed comment now. wait ".intval($limit->i*60 -        $diff->format('%s'))." seconds until allowed comment again.";  }  ?>

edit: added missing calculation of total minutes. otherwise calculation don't work dates same minutes other day or hour.

another , simpler/generic (working every interval) solution this:

<?php date_default_timezone_set('utc');   // current datetime. $now = new datetime("now");  // last comment datetime. $comment = new datetime('2014-03-18 16:45:00');  // , add interval limit comments. $limit = new dateinterval('pt1m'); $comment->add($limit);  // debug output echo $now->format('y-m-d h:i:s').'<br>'; echo $comment->format('y-m-d h:i:s').'<br>';  // limit smaller difference? next comment allowed. if($comment <= $now) {     echo "your comment has been saved!"; } else {     echo "your aren't allowed comment now. on ".$comment->format('y-m-d h:i:s')."              allowed comment again."; } ?>

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