How to display normalized MySQL data in a flat HTML table with PHP?

You could denormalize the data on output in your query, like this (Grouping on userdb_id):

SELECT
    MAX(CASE WHEN userdbelements_field_name = 'user_first_name' 
        THEN userdbelements_field_value ELSE NULL END) AS first_name,
    MAX(CASE WHEN userdbelements_field_name = 'user_last_name' 
        THEN userdbelements_field_value ELSE NULL END) AS last_name,
    MAX(CASE WHEN userdbelements_field_name = 'City' 
        THEN userdbelements_field_value ELSE NULL END) AS city,
    MAX(CASE WHEN userdbelements_field_name = 'state' 
        THEN userdbelements_field_value ELSE NULL END) AS state,
    MAX(CASE WHEN userdbelements_field_name = 'zip' 
        THEN userdbelements_field_value ELSE NULL END) AS zip,
    MAX(CASE WHEN userdbelements_field_name = 'phone' 
        THEN userdbelements_field_value ELSE NULL END) AS phone,
FROM userdbelemnts
GROUP BY userdb_id

Then in your php, just loop through the results as you would in a flat table.

<thead>
    <tr>
        <th>Firstname</th>
        <th>Lastname</th>
        <th>City</th>
        <th>State</th>
        <th>Phone</th>
    </tr>
</thead>
<tbody>
<?php while ($row = mysqli_fetch_assoc($result)) { ?>
    <tr>
        <td><?=$row['first_name']?></td>
        <td><?=$row['last_name']?></td>
        <td><?=$row['city']?></td>
        <td><?=$row['state']?></td>
        <td><?=$row['phone']?></td>
    </tr>
<?php } ?>
</tbody>

Edit: given your new table schema per comments below:

SELECT
    orodha_en_userdb.*,
    MAX(CASE WHEN userdbelements_field_name = 'user_first_name' 
        THEN userdbelements_field_value ELSE NULL END) AS first_name,
    MAX(CASE WHEN userdbelements_field_name = 'user_last_name' 
        THEN userdbelements_field_value ELSE NULL END) AS last_name,
    MAX(CASE WHEN userdbelements_field_name = 'City' 
        THEN userdbelements_field_value ELSE NULL END) AS city,
    MAX(CASE WHEN userdbelements_field_name = 'state' 
        THEN userdbelements_field_value ELSE NULL END) AS state,
    MAX(CASE WHEN userdbelements_field_name = 'zip' 
        THEN userdbelements_field_value ELSE NULL END) AS zip,
    MAX(CASE WHEN userdbelements_field_name = 'phone' 
        THEN userdbelements_field_value ELSE NULL END) AS phone,
FROM orodha_en_userdbelements
    INNER JOIN orodha_en_userdb
    ON orodha_en_userdbelements.userdb_id = orodha_en_userdb.userdb_id
WHERE orodha_en_userdb.userdb_id = $id
GROUP BY orodha_en_userdb.userdb_id