show name from inner join with the id [duplicate]

Answer 1

select country.id, country.country,segment.segment from countrysegments 
inner join country on countrysegments.country_id  = country.id
inner join segments on countrysegments.segment_id = segments.id where country.id = (any id of country).

it will give all segments of require country or you can remove where clause to get all segments of al countries and then you can play with results.

Answer 2

My version with some code. ;)

<table>
<thead>
    <tr>
        <th class="text-center">country</th>
        <th class="text-center">segments</th>
    </tr>
</thead>
<tbody>
<?php
    require 'class.php';

    $conn = new db_class();
    $read = $conn->select(); // <-- here you'd call a query like this:
/*
"SELECT country.id AS countryID, country.country, segments.id AS segmentID, segments.segment
FROM countrysegments 
inner join country on countrysegments.country_id  = country.id
inner join segments on countrysegments.segment_id = segments.id
ORDER BY country.id, segments.id "
*/

// Then do some transformation for easier readability when creating the table!!
    $countryId = 0;
    $countries = [];
    while($fetch = $read->fetch_array(MYSQLI_ASSOC)) {
        if($countryId != $fetch['countryID']){
            $countryId = $fetch['countryID'];

            $countries[$countryId] = [
                'country' => $fetch['country'],
                'segments' => [],
            ];
        }

        $countries[$countryId]['segments'][] = [
            'segmentID' => $fetch['segmentID'],
            'segment' => $fetch['segment'],
        ];
    }

    // Here you can read the code to build the table easily ;)
    foreach($countries as $country){
        echo "<tr>";
            echo "<td>{$country['country']}</td>";
            echo "<td><select>";
            foreach($country['segments'] as $segment){
                echo "<option value=\"{$segment['segmentID']}\">{$segment['segment']}</option>";
            }
            echo "</select></td>";
        echo "</tr>";
    }
    ?>
</tbody>
</table>

Hope this helps. :)