Footnote in HTML Table - html

Question

In the following HTML table snippet, I will like to add footnotes (or simple comments) for columns "stat 1", "stat 2" and "stat 3" to explain each of the stats in more detail. Preferably, want the comments/details to appear right below the table with each comment correctly referring to the right column. Any suggestion on how to achieve this? Thanks.
if(!empty($output))
{
echo '<table cellpadding="0" cellspacing="0" class="imagetable">';
echo '<caption>Table 1</caption>';
echo '<tr><th>Date</th><th>Stat 1</th><th>Stat 2</th><th>Stat 3</th><th></tr>';
foreach ($output as $result)
{
$temp = explode(" ",$result);
echo '<tr>';
for($i=0;$i<count($temp);$i++){
echo '<td>',$temp[$i],'</td>';
}
echo '</tr>';
}
echo '</table><br />';
}

Answer 1

You could use tfoot (http://www.w3schools.com/tags/tag_tfoot.asp)
if(!empty($output))
{
echo '<table cellpadding="0" cellspacing="0" class="imagetable">';
echo '<caption>Table 1</caption>';
echo '<thead><tr><th>Date</th><th>Stat 1</th><th>Stat 2</th><th>Stat 3</th></tr></thead>';
echo '<tfoot><tr><td> </td><td>*note 1</td><td>*note 2</td><td>*note 3</td></tr></tfoot>';
foreach ($output as $result)
{
$temp = explode(" ",$result);
echo '<tr>';
for($i=0;$i<count($temp);$i++){
echo '<td>',$temp[$i],'</td>';
}
echo '</tr>';
}
echo '</table><br />';
}