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xpath_eval

Evaluates the XPath Location Path in the given string (PHP 4 >= 4.0.4)
XPathObject xpath_eval ( XPathContext xpath_context, string xpath_expression [, domnode contextnode] )

XPathContext {
  XPathObject xpath_eval(string xpath_expression,
                         domnode contextnode);

}

The optional contextnode can be specified for doing relative XPath queries.

See also xpath_new_context().