/**
* Recursively drills down in the xml tree in $node and
* concatenates text content from the DOMNodes with a space
* in-between to make sure search words from two different lines
* are merged.
*
* @param DOMNode $node
* @return string
*/
static function concatTextContent($node)
{
$retString = '';
if (!$node instanceof DOMNode) {
return $retString;
}
if ($node->hasChildNodes()) {
$childArray = $node->childNodes;
foreach ($childArray as $child) {
$retString .= eZXMLTextType::concatTextContent($child);
}
} elseif ($node->nodeType === XML_TEXT_NODE) {
return $node->textContent . ' ';
}
return $retString;
}
