我应该如何标记选择下拉列表，以便将选择传递给我的php脚本？

Question

I have kind of mastered input boxes. I put them as gaps in a text in a form, the student fills in the gaps and sends the form, which calls the php.

<form action="php/thankyou18BEsW1.php" method="POST" name="myForm" onsubmit="return checkForExpiration();" >

Some text<INPUT TYPE="Text" NAME="G1" size="15"> some more text.

My php script has at the top:

  //should mail the contact form
<?php
$studentnr = $_POST['sn'];
$q1 = $_POST['G1'];

and sure enough, the value in the textbox G1, and all the others, get sent to me OK.

Soemtimes, I would like to use a drop-down box. The students should choose a word. Here on stackoverflow I found the following. I hope that is the right way to do this!

<select >
<option value="" disabled selected>Please select a word...</option> 
<option>this</option>
<option>that</option>
</select>

I'm not quite sure where to put NAME="G1". In <select> or in <option> ???

When I do this with radio buttons I have banks of radio buttons like this:

<input type="radio" name="G30" value="A">A
<input type="radio" name="G30" value="B">B
<input type="radio" name="G30" value="C">C
<input type="radio" name="G30" value="D">D

and that works. So I'm thinking I should put name="G1" in

<option name="G1">this</option>
<option name="G1">that</option>
<option name="G1">whatever</option>

Will that work like that? Is there some other, better way?

Answer 1

<select name="country_code">
    <option value="us">United States</option>
    <option value="fr">France</option>
</select>

and then in PHP:

$countryCode = $_POST['country_code'];
if ($countryCode === 'fr') { /*...*/ }