if(!empty($_POST['gata'])){
$taskInsert = DB::getInstance()->update('task', '$id', 
$fields = array(
'ratie_star' => 'ratie_star',
  'cat_a_durat' => 'cat_a_durat',
  'este_gata' => 'este_gata'
));
header('Location: account.php');
 }





<form id="demo-form2" method='post' name='myform' action="<?=$_SERVER['PHP_SELF']?>?id=<?=$taskdetails['id']?>" data-parsley-validate class="form-horizontal form-label-left ">

            <div class="col-lg-12 col-xs-12 col-sm-12">
              <ul class="list-group">
                <li class="list-group-item"><font  color="<?=$taskdetails['color']?>"><i style="font-size:1.9em;" class="fa fa-square gi-5x"> <strong><?=$taskdetails['titlu']?></strong></i></font></li>
                <li class="list-group-item"><?=$taskdetails['utilizator']?></li>
                <li class="list-group-item"><?=$taskdetails['post_data']?></li>
                <li class="list-group-item">Status: <?=$taskdetails['task_uregent']?></li>
                <li class="list-group-item"><a href="tel:<?=$taskdetails['telefon']?>"><i style="font-size:2.9em;" class="fa fa-phone-square "></i></a> <a href='https://mail.google.com/mail/?view=cm&fs=1&to=<?=$taskdetails['email']?>&su=Intrebare de la  <?=ucfirst($user->data()->lname)?>&body=Task numar <?=$taskdetails['id']?> Titlu: <?=$taskdetails['titlu']?>, deschis de: <?=$taskdetails['utilizator']?>'><i style="font-size:2.9em;" class="fa fa-envelope"></i></a> <i style="font-size:2.9em;" class="fa fa-facebook-square"></i></li>
                <li class="list-group-item">
				<input type="text" id="input-21e" value="<?=$taskdetails['ratie_star']?>" name="ratie_star" class="rating" min=0 max=5 step=0.5 data-size="sm" >
				
				<input type="text" id="istoric_utilizator" name="istoric_utilizator" value="Terminat"> 
				</li>
              </ul>
            </div>
          </div>
        </div>
      </div>
      <div class="bs-callout bs-callout-danger">
        <h4>Detalii: <?=$taskdetails['titlu']?></h4>
        <ul class="list-group">
         
        
            <h4 class="list-group-item-heading"></h4>
            <p class="list-group-item-text">
             <?=$taskdetails['descriere']?>
                </p><ul>
                 
                
                </ul>
            <p></p>
          
        </ul>
		
		
		<a class="btn btn-default" href="javascript:history.go(-1)">Inapoi</a>
                        <input class='btn btn-success btn-sm' type='submit' name='gata' value='Este gata' />
		
		</form>