如何根据类名获取下拉值

I want to get the dropdown value based on class name

<select name="changeStatus" class="changeStatus1" id="changeStatus1" onChange="business_type('1')">

Because of some reason i don't want to get the value through the name($_POST['changeStatus'];).

I want to get through class name.

Here is how I would do it, add a hidden input field and when the form is submit, modify the value of the hidden input field.

<form id="myForm">
    <input type="hidden" name="hidden_input" id="hidden_input">
</form>

jQuery

$('#myForm').on('submit', function(){
    $('#hidden_input').val($('#changeStatus1').attr('class'));
});

Then on the backend, you can get the class of the posted input (PHP for example)

$className = $_POST['hidden_input'];
switch($className){
    // do Stuff...
}