header("Access-Control-Allow-Origin: *");

$hostname = 'localhost';
$username = 'user';
$password = 'pass';
$database = 'user_table';

$f = $_POST['f'];
$upts = $_POST['p'];
$uid = $_POST['u'];
$time = date("Y-m-d H:i:s");
$gid = $_POST['gi'];
$sg=$_POST['sg'];
//ещё несколько параметров получаются через POST

$dbh = new PDO("mysql:host=$hostname; dbname=$database", $username, $password);
$dbh->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION);
$dbh->setAttribute(PDO::ATTR_EMULATE_PREPARES, false);
$dbh->setAttribute(PDO::ATTR_PERSISTENT, true);
$stmt = $dbh->query("SET NAMES utf8");

//прочие функции

function user_insert($dbh,$upts,$uid,$time,$gid)
{
try
  {
    $uuid=str_replace(".".$gid,"",$uid);
    $stmt1 = $dbh->query("SELECT COUNT(*) from `banned` WHERE tb_uid = '$uuid'");
    $result1 = $stmt1->fetchColumn();
    if ($result1 > 0)
      $upts=0;
    if ($upts>0)
    {
      $stmt = $dbh->prepare("INSERT INTO users_table (tb_pts, tb_time, tb_uid, tb_gid) VALUES(:upts, :time, :uid, :gid)
      ON DUPLICATE KEY UPDATE tb_pts = GREATEST(:upts2, tb_pts), tb_time = :time2, tb_gid = :gid2");
      $stmt ->bindparam(':upts', $scdc, PDO::PARAM_STR);
      $stmt ->bindparam(':time', $time, PDO::PARAM_STR);
      $stmt ->bindparam(':uid', $uid, PDO::PARAM_STR);
      $stmt ->bindparam(':gid', $gid, PDO::PARAM_STR);
      $stmt ->bindparam(':upts2', $scdc, PDO::PARAM_STR);
      $stmt ->bindparam(':time2', $time, PDO::PARAM_STR);
      $stmt ->bindparam(':gid2', $gid, PDO::PARAM_STR);

      $stmt->execute();
      echo "1";
    }
    else
      echo "0";
    }
    catch (PDOExecption $ex)
    {
      echo "0";
    }
    //$dbh = null;
}

//прочие функции

switch ($f)
{
  //case fname...
  case 'ui': user_insert($dbh,$upts,$uid,$time,$gid); break;
  //case fname..
  //default: echo "0";
}

$contime=microtime(true);
$dbh = new PDO("mysql:host=$hostname; dbname=$database", $username, $password);
$dbh->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION);
$dbh->setAttribute(PDO::ATTR_EMULATE_PREPARES, false);
$dbh->setAttribute(PDO::ATTR_PERSISTENT, true);
$contime="contime: "+(microtime(true)-$contime);