php generated table using rowspan - php

Question

I am using this code to generate a table which will subsequently be modified to upload data to a mysql database.
<?php
$start_loc_number= 1 ;
$start_loc_alpha= 'A' ;
$end_loc_number= 10 ;
$end_loc_alpha= 'J' ;
$out = '';
$out .= '<table border = 1 bordercolor="#FF0000">';
for($tr='A';$tr<=$end_loc_alpha;$tr++)
{ $out .= "<tr>";
for($td=1;$td<=$end_loc_number;$td++)
{ $out .= '<td BGCOLOR="#99CCFF">'.$tr.$td.'</td>
<td id="sampleID" contenteditable="true"> sampleID</td>
<td id="volume" contenteditable="true"> volume</td>' ;
}
$out .= "</tr>";
}
$out .= "</table>";
echo $out;
?>
At the moment the table generates 3 cells per iteration in 3 column cells,
| coordinates | sample ID | volume |
My question relates to how the php code can be altered so to generate a table where the coordinates cell can be arranged as a rowspan over the sampleID and volume cells positioned in 2 rows with the sample ID over the volume cell
| | sample ID
| coordinates |------------
| | volume

Answer 1

try this,
for($tr='A';$tr<=$end_loc_alpha;$tr++)
{ $out .= "<tr>";
for($td=1;$td<=$end_loc_number;$td++)
{ $out .= '<td BGCOLOR="#99CCFF">'.$tr.$td.'</td><td>
<table><tr style="border-bottom: 1px solid red">
<td id="sampleID" contenteditable="true"> sampleID</td></tr>
<tr> <td id="volume" contenteditable="true"> volume</td></tr></table></td>' ;
}
$out .= "</tr>";
}

Answer 2

This works for me
<table>
<tr>
<td rowspan="2">test</td>
<td>test1</td>
</tr>
<tr>
<td>test2</td>
</tr>
</table>
EDIT : fiddle

Answer 3

you can set rowspan="2" on your coords TD.
You really should not build your output like that.
Try this approach:
<?php
$content = array(
array(
'cords' => 1,
'samp' => "Bar",
'vol' => 13
),
array(
'cords' => 2,
'samp' => "Foo",
'vol' => 456
),
array(
'cords' => 3,
'samp' => "DJ",
'vol' => 34
)
);
?>
<table>
<tbody>
<? foreach($content as $key => $value) { ?>
<tr>
<th rowspan="2">Coordinates: <?= $value['cords'] ?></th>
<td>sample ID: <?= $value['samp'] ?></td>
</tr>
<tr>
<td>volume: <?= $value['vol'] ?></td>
</tr>
<? } ?>
</tbody>
</table>