Perform an xpath search on the contents of the internal browser. The search is relative to the root element (HTML tag normally) of the page.
$xpath: The xpath string to use in the search.
array $arguments: An array of arguments with keys in the form ':name' matching the placeholders in the query. The values may be either strings or numeric values.
The return value of the xpath search. For details on the xpath string format and return values see the SimpleXML documentation, http://us.php.net/manual/function.simplexml-element-xpath.php.
protected function xpath($xpath, array $arguments = array()) {
if ($this
->parse()) {
$xpath = $this
->buildXPathQuery($xpath, $arguments);
$result = $this->elements
->xpath($xpath);
// Some combinations of PHP / libxml versions return an empty array
// instead of the documented FALSE. Forcefully convert any falsish values
// to an empty array to allow foreach(...) constructions.
return $result ? $result : array();
}
else {
return FALSE;
}
}