/**
* Cached transformation a given XML string using
* the registered PHP callbacks for overloaded tags.
*
* @param string
* @param string
* @return string
* @access public
*/
function transform($xml, $cacheID = '')
{
$cacheID = $cacheID != '' ? $cacheID : md5($xml);
$cachedResult = $this->_cache->get($cacheID, 'XML_Transformer');
if ($cachedResult !== FALSE) {
return $cachedResult;
}
$result = parent::transform($xml);
$this->_cache->save($result, $cacheID, 'XML_Transformer');
return $result;
}
require_once 'XML/Transformer.php';
function startTalk($attrs)
{
return "<presentation type='meeting_talk'>";
}
function endTalk($cdata)
{
return "{$cdata}</presentation>";
}
function startDate($attrs)
{
return "<year_month_day>";
}
function endDate($cdata)
{
return "{$cdata}</year_month_day>";
}
function startSpeaker($attrs)
{
return "<name role='speaker'>";
}
function endSpeaker($cdata)
{
return "{$cdata}</name>";
}
$options = array('overloadedElements' => array('talk' => array('start' => 'startTalk', 'end' => 'endTalk'), 'date' => array('start' => 'startDate', 'end' => 'endDate'), 'speaker' => array('start' => 'startSpeaker', 'end' => 'endSpeaker')), 'recursiveOperation' => false);
$xmlfile = 'data/sdphp_talks.xml';
$xmldoc = implode('', file($xmlfile));
$t = new XML_Transformer($options);
$newxml = $t->transform($xmldoc);
echo $newxml;
/**
* SAX callback for 'endElement' event.
*
* @param resource
* @param string
* @access private
*/
function _endElement($parser, $element)
{
$cdata = $this->_cdataStack[$this->_level];
$element = $this->canonicalize($element);
$qElement = XML_Util::splitQualifiedName($element, '&MAIN');
$process = $this->_lastProcessed != $element;
$recursion = FALSE;
if ($process && isset($this->_callbackRegistry->overloadedNamespaces[$qElement['namespace']]['active'])) {
// The event is handled by a callback
// that is registered for this namespace.
$result = $this->_callbackRegistry->overloadedNamespaces[$qElement['namespace']]['object']->endElement($qElement['localPart'], $cdata);
if (is_array($result)) {
$cdata =& $result[0];
$reparse = $result[1];
} else {
$cdata =& $result;
$reparse = TRUE;
}
$recursion = $reparse && isset($this->_elementStack[$this->_level - 1]) && $this->_callbackRegistry->overloadedNamespaces[$qElement['namespace']]['recursiveOperation'];
} else {
// No callback was registered for this element's
// closing tag, copy it.
$cdata .= '</' . $element . '>';
}
if ($recursion) {
// Recursively process this transformation's result.
if ($this->_checkDebug('&RECURSE')) {
$this->sendMessage(sprintf('start recursion[%d]: %s', $this->_level, $cdata));
}
$transformer = new XML_Transformer(array('callbackRegistry' => &$this->_callbackRegistry, 'caseFolding' => $this->_caseFolding, 'caseFoldingTo' => $this->_caseFoldingTo, 'lastProcessed' => $element));
$cdata = substr($transformer->transform("<_>{$cdata}</_>"), 3, -4);
if ($this->_checkDebug('&RECURSE')) {
$this->sendMessage(sprintf('end recursion[%d]: %s', $this->_level, $cdata));
}
}
if ($this->_checkDebug($element)) {
$this->sendMessage(sprintf('endElement[%d]: %s (with cdata=%s)', $this->_level, $element, $this->_cdataStack[$this->_level]));
}
// Move result of this transformation step to
// the parent's CDATA section.
$this->_cdataStack[--$this->_level] .= $cdata;
}
