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# xpath_eval_expression

(PHP 4 >= 4.0.4, PECL)

xpath_eval_expression -- Evaluates the XPath Location Path in the given string

## Description

class XPathContext {
XPathObject xpath_eval_expression ( string expression [, domnode contextnode] )
}XPathObject xpath_eval_expression ( XPathContext xpath_context, string expression [, domnode contextnode] )

範例 1. xpath_eval_expression() Example

`<?php include("example.inc"); if (!$dom = domxml_open_mem($xmlstr)) { echo "Error while parsing the document\n"; exit; } $xpath = xpath_new_context($dom); var_dump(xpath_eval_expression($xpath, '/chapter/@language')); ?>`

The above example will output:

    object(XPathObject)(2) {
       ["type"]=>
       int(1)
       ["nodeset"]=>
       array(1) {
         [0]=>
         object(domattribute)(5) {
           ["type"]=>
           int(2)
           ["name"]=>
           string(8) "language"
           ["value"]=>
           string(2) "en"
           [0]=>
           int(7)
           [1]=>
           int(138004256)
         }
      }
    }

See also xpath_eval().

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