Applying a class to a parent element in the DOM? - php

Question

<li id="weather" class="widget-container widget-dark-blue">
<h3 class="widget-title">Weather</h3>
<?php include (TEMPLATEPATH . '/widgets/weather.php'); ?>
</li>
weather.php does a curl request to a weather service and returns a table. With the DomDocument Class I read the values inside of the td's. I'm applying a classname of the current weather condition to a div.weather.
<?php
require_once('classes/SmartDOMDocument.class.php');
$url = 'some/domain...';
$curl = curl_init();
curl_setopt($curl, CURLOPT_URL, $url);
curl_setopt($curl, CURLOPT_RETURNTRANSFER, true);
curl_setopt($curl, CURLOPT_HEADER, false);
$str = curl_exec($curl);
$dom = new SmartDOMDocument();
$dom->loadHTML($str);
$xpath = new DOMXPath($dom);
$tds = $xpath->query('//div/table/tr/td');
foreach ($tds as $key => $cell) {
if ($key==1) {
$condition = $cell->textContent;
//$cell->parentNode->setAttribute('class', 'hello');
echo "<div class='weather " . strtolower($condition) ."'>";
...
?>
Everything works fine. My one and only question is, is there a PHP way of applying the classname $condition to the list-item that holds the information?
So instead of having a class with the $condtion inside of my li#weather I'd like to have the li#weather the class.
<li id="weather" class="widget-container widget-dark-blue $condition">
Is there any way I can apply the $condition class to the list that hold's everything. I could easily do it with javascript/jquery. However I wonder if there is some serverside solution.
thank you

Answer 1

Maybe you could try somthing like :
$parent = $cell->parentNode;
while ($parent->tagName != 'li')
{
$parent = $parent->parentNode;
}
$class = $parent->getAttribute('class');
$parent->setAttribute('class', $class . ' ' . strtolower($condition));