How to successfully $_POST <options> from a <select> to another page in PHP?

Question

I know there have a been a lot of questions like this but none (that I have found, and I've looked at many, but correct me if I am wrong) have solved my problem.

As the title of the question suggests, I need to Post select options to another page. My code looks something like this:

<form id="join_pool_form" name="join_pool_form"  action="connect.php" method="post"> 

<select name="pool_name" style="width:170px">
<?php
            //The options are from an array. This works fine.
        foreach($poolnames as $value):
            echo '<option value="">'.$value.'</option>';
        endforeach;
        unset($value);
?>
</select>

<input name="passcode" type="password" autofocus required id="passcode" size="35"style="width:170px">

<input type="submit" id="submit" value="Join Pool"> 

</form>

The connect.php (action of the form) page has something like this:

<?php

if (isset($_POST['pool_name'])) {
    echo "do this";
}else {
    echo "do other";
}

So the result of this should be "do this", but I always get "do other". I'm very new to this, so excuse me if the solution is extremely simple. However, I have looked over it multiple times to no avail.

Thanks in advance.

---

Thanks everyone for your help. Problem solved.

Answer 1

you just have to pass the value in the html attribute of the option:

<select name="pool_name" style="width:170px">
<?php
        //The options are from an array. This works fine.
    foreach($poolnames as $value):
        echo '<option value="'.$value.'">'.$value.'</option>';
    endforeach;
    unset($value);
?>
</select>

Answer 2

<?php

if (isset($_POST['pool_name'])) {
    $variable =  $_POST['pool_name'];
}else {
    $variable =  'Unknown';
}

Answer 3

The value of the select option has to be set to what your intending to send. If you don't set it, it will send nothing.

<option value='test'>Dont choose this</option>

The above will send the value test.

Answer 4

replace

echo '<option value="">'.$value.'</option>';

with

echo '<option value="'.$value.'">'.$value.'</option>';