Foreach kullanarak post almak

<?php

include "baglanti.php";

$testad = filter_input(INPUT_GET, "test");

$testcek = $baglanti -> prepare("select * from test where baslik = ?");
$testcek -> bindParam(1, $testad);
$testcek -> execute();

$i = 0;

?>

<div id="testler">

<?php

foreach ($testcek as $testbilgi) {

    $i++;

    $taciklama = $testbilgi["testaciklama"];
    $c1 = $testbilgi["cevap1"];
    $c2 = $testbilgi["cevap2"];
    $c3 = $testbilgi["cevap3"];
    $c4 = $testbilgi["cevap4"];
    $dogrucevap = $testbilgi["cevap"];

    $formad = "form".$i;

    $radioname = "radio".$i;
   
    $cradioa = "ra".$i;
    $cradiob = "rb".$i;
    $cradioc = "rc".$i;
    $cradiod = "rd".$i;

    $aciklamatop = -20 * $i;

    $atop = 150 * $i;

    $btop = 200 * $i;

    $ctop = 250 * $i;

    $dtop = 300 * $i;

    ?>

    <br>
    <label style="position: absolute;top: <?php echo($aciklamatop); ?> px;left: px;"><?php echo($taciklama); ?></label><br><br>

    <label style="position: absolute;top: <?php echo($atop); ?> px;left: px;">a) <?php echo($c1); ?></label><br>

    <label style="position: absolute;top: <?php echo($btop); ?> px;left: px;">b) <?php echo($c2); ?></label><br>

    <label style="position: absolute;top: <?php echo($ctop); ?> px;left: px;">c) <?php echo($c3); ?></label><br>

    <label style="position: absolute;top: <?php echo($dtop); ?> px;left: px;">d) <?php echo($c4); ?></label><br><br>

    <form action="" method="post" name="<?php echo($formad); ?>">
        <input type="radio" class="<?php echo($cradioa); ?>" name="<?php echo($radioname); ?>" value="a">a
        <input type="radio" class="<?php echo($cradiob); ?>" name="<?php echo($radioname); ?>" value="b">b
        <input type="radio" class="<?php echo($cradioc); ?>" name="<?php echo($radioname); ?>" value="c">c
        <input type="radio" class="<?php echo($cradiod); ?>" name="<?php echo($radioname); ?>" value="d">d
        <input type="submit" id="gonderb" class="gonderb<?php echo($i); ?>" name="g" value="Gönder">
    </form>

    <?php

}

    if (isset($_POST["g"])) {

        ?>

        <script type="text/javascript">
       
        alert("veri alındı");

        </script>

        <?php

        $seciliradio = filter_input(INPUT_POST, $radioname);

        if ($seciliradio == $dogrucevap) {

            echo "Doğru cevap yazılımcı parası eklenmiştir";

            ?>

            <script type="text/javascript">
               
                document.getElementById("gonderb").remove();

                alert("a");

            </script>

            <?php

        }else{

            echo "Yanlış cevap";

        }

    }

?>

</div>