Is there a way I can check all these values without having to code all these if statements and then grab the last value for instance in this code example sub10 How can I do this using PHP?

Burada PHP kodudur.

if(isset($_GET['sub1'])) {
    $sub1 = $_GET['sub1'];
}

if(isset($_GET['sub2'])) {
    $sub2 = $_GET['sub2'];
}

if(isset($_GET['sub3'])) {
    $sub3 = $_GET['sub3'];
}

if(isset($_GET['sub4'])) {
    $sub4 = $_GET['sub4'];
}

if(isset($_GET['sub5'])) {
    $sub5 = $_GET['sub5'];
}

if(isset($_GET['sub6'])) {
    $sub6 = $_GET['sub6'];
}

if(isset($_GET['sub7'])) {
    $sub7 = $_GET['sub7'];
}

if(isset($_GET['sub8'])) {
    $sub8 = $_GET['sub8'];
}

if(isset($_GET['sub9'])) {
    $sub9 = $_GET['sub9'];
}

if(isset($_GET['sub10'])) {
    $sub10 = $_GET['sub10'];
}