Show data from db into another div (from selected $rowId ) - php

Question

I'm having problems with showing data from a selected row into another div.
Meaning I'm showing eg forename and lastname, when the user clicks on the name (as a link), I would like to show more data from the Id chosen, and I would like it to be shown in a div box below.
See the site here: http://kristoff.it/onlinecoaching/
And my code:
<div class="greenBox1">
<h1>1 - VÆLG DIN ONLINE COACH</h1>
<div class="whiteBox1">
<?php
$sql = "SELECT * FROM coach ";
$coachId = $row["coachId"];
$fornavn = $row["fornavn"];
$efternavn = $row["efternavn"];
$result = mysql_query($sql);
while($row=mysql_fetch_assoc($result))
{
echo '<table border="0" align="left" height="100">';
echo '<tr>';
echo '<td width="95" rowspan="2" align="center" valign="middle"><img src="' . $row['imgUrl'] . '" width="85" height="85" alt="' . $row['imgAlt'] . '"/>' . '</td>';
?>
<!-- here I'm trying to write the id of the selected name to the div box below -->
<?
echo '<td><h2>' . $row['fornavn'] . $row['efternavn'] . '</h2></td>';
echo '</tr>';
echo '<tr>';
echo '<td valign="top" width="190"><p>' . $row['beskrivKort'] . '<br></p></td>';
echo '</tr>';
echo '</table>';
}
?>
</div>
</div>
<div class="greenBox2">
<h1>2 - BOOK TID I COACHENS KALENDER</h1>
<div class="whiteBox2" id="whiteBox2">
<!-- here would like the more data to show -->
</div>
</div>
Regards Maria

Answer 1

In your website, your URLs are empty. You need to put your ID.
echo '<td><h2>' . $row['fornavn'] . $row['efternavn'] . '</h2></td>';
With that URL, you will send the ID as a GET variable.
You must then request your data if the ID is set.
<div class="whiteBox2" id="whiteBox2">
<?php
if (isset($_GET['id']))
{
$sql = "SELECT * FROM coach WHERE coachId=" . (int)$_GET['id'];
// Do your stuff...
echo "Hello";
}
?>
<!-- here would like the more data to show -->
</div>