<?php

//zapis dla paczki kliku rekordów.
try {
    include "model2.php";
    $baza = new model2();
    $data = '';
    if (isset($_POST["data"])) {
        $data = "{\"tab\":[" . $_POST["data"] . "]}";
    }
    $obj = (array) json_decode($data, true);
    $response = '';
    foreach ($obj['tab'] as $value) {
        if (isset($obj->tyt) and isset($obj->autn) and isset($obj->auti) and isset($obj->wyd) and isset($obj->rok)) {
            $response = $baza->saveRec($value);
        }
    }
    echo $response ? "Dodano dane" : "Pusto ";
} catch (Exception $e) {
    echo 'Nie ma nic dodanego offline: [' . $e->getCode() . '] ' . $e->getMessage();
}
<?php

try {
    //Mechanizm do zapisu danych do bazy.
    include "model2.php";
    $baza = new model2();
    $data = '';
    if (isset($_POST["data"])) {
        $data = $_POST["data"];
    }
    $obj = json_decode($data);
    $response = '';
    if (isset($obj->tyt) and isset($obj->autn) and isset($obj->auti) and isset($obj->wyd) and isset($obj->rok)) {
        $response = $baza->saveRec($obj);
    }
    echo $response ? "Dodano dane" : "Blad ";
} catch (Exception $e) {
    echo 'Blad: [' . $e->getCode() . '] ' . $e->getMessage();
}