$sth = ibase_query($dbh,"delete from table where c= 1");

             $r= ibase_fetch_assoc($sth);
  	     if ($r==true) {
             $array[] = array (
                    "code" => "true",
                    "message" => "Удачно"),
					"guid" => $r['GUID_OUT'],
               );  				
   	       } else
	       {
                  $array[] = array (
                    "code" => "false",
                    "message" => iconv('windows-1251', 'UTF-8','Ошибка добавления в таблицу!'),
               );  				
		}

            echo (json_encode($array,JSON_UNESCAPED_UNICODE));

   var data = "request=insert&name="+$("#name").val()+"&short="+$("#short").val();						
                            $.ajax({
  		                //type: "POST",
                                dataType: 'json',
                                url: '/functions.php',
                                cache: false,
                                data: data,
                                success: function (data, status, xhr) {  //
                                 // тут обрабатываю json ответ.
                               },
                           error: function (request, status, error) {
                              alert(request.responseText);
                           }
                            });					

                    });