How get value for unchecked checkbox in checkbox elements when form posted?

Question

I have a form like below :

Answer 1

try below code

    $myresult = array();

    if(!isset($_POST['status_1'])){ 
        $myresult['status_1'] = 0;
    }
    if(!isset($_POST['status_2'])){ 
        $myresult['status_2'] = 0;
    }
    if(!isset($_POST['status_3'])){ 
        $myresult['status_3'] = 0;
    }

    echo "
";
    print_r($myresult);
    echo "
";
    exit;