table-mapper
TableMapper is a class that I wrote to ease the consumption of complex HTML tables., (*1)
Example:, (*2)
<table>
<tbody>
<tr>
<td colspan="3">Row 0 : Cell 0</td>
<td rowspan="2">Row 0 : Cell 1</td>
</tr>
<tr>
<td>Row 1 : Cell 0</td>
<td>Row 1 : Cell 1</td>
<td>Row 1 : Cell 2</td>
</tr>
</tbody>
</table>
Looks something like this:, (*3)
| Row 0 : Cell 0 |
Row 0 : Cell 1 |
| Row 1 : Cell 0 |
Row 1 : Cell 1 |
Row 1 : Cell 2 |
That can be tricky to consume, however. So this class creates a clone of the table element you pass in and creates an in-memory version that looks like this:, (*4)
<table>
<tbody>
<tr>
<td>Row 0 : Cell 0</td>
<td>Row 0 : Cell 0</td>
<td>Row 0 : Cell 0</td>
<td>Row 0 : Cell 1</td>
</tr>
<tr>
<td>Row 1 : Cell 0</td>
<td>Row 1 : Cell 1</td>
<td>Row 1 : Cell 2</td>
<td>Row 0 : Cell 1</td>
</tr>
</tbody>
</table>
Which looks like this:, (*5)
| Row 0 : Cell 0 |
Row 0 : Cell 0 |
Row 0 : Cell 0 |
Row 0 : Cell 1 |
| Row 1 : Cell 0 |
Row 1 : Cell 1 |
Row 1 : Cell 2 |
Row 0 : Cell 1 |
Usage, (*6)
$tableHTML = <<<HTML
<h1>Original Table</h1>
| Row 0 : Cell 0 |
Row 0 : Cell 1 |
| Row 1 : Cell 0 |
Row 1 : Cell 1 |
Row 1 : Cell 2 |
HTML;
$dom = new \DOMDocument;
$dom->loadHTML($tableHTML);
$tableMapper = new \DCarbone\TableMapper($dom->getElementsByTagName('table')->item(0));
$tableMapper->createMap();
$dom->appendChild($dom->createElement('h1', 'Parsed Table'));
$newTable = $dom->createElement('table');
$dom->appendChild($newTable);
foreach($tableMapper->getRowCellMap() as $groupi=>$groupDef)
{
foreach($groupDef as $rowi=>$cellMap)
{
$newTr = $dom->createElement('tr');
$newTable->appendChild($newTr);
foreach($cellMap as $cellNum)
{
$cell = $tableMapper->getCell($groupi, $rowi, $cellNum);
$newTr->appendChild($dom->createElement('td', $cell->nodeValue));
}
}
}
echo $dom->saveHTML();
This is a very simple class, overall. A few things to note:, (*7)
- TableMapper does NOT mutate the DOMElement you pass in, it clones and imports it into a new DOM before doing anything.
- TableMapper does not fix invalid HTML
- TableMapper does not do your laundry.
Wallogit.com
