超越PHP - Exceed PHP: SimpleXMLElement->xpath

Description

array SimpleXMLElement->xpath ( string path)

The xpath method searches the SimpleXML node for children matching the Xpath path. It always returns an array of SimpleXMLElement objects.

例子 1. Xpath

<?php $string = <<<XML <a> <b> <c>text</c> <c>stuff</c> </b> <d> <c>code</c> </d> </a> XML; $xml = simplexml_load_string($string); /* Search for <a><b><c> */ $result = $xml->xpath('/a/b/c'); while(list( , $node) = each($result)) { echo '/a/b/c: ',$node,"\n"; } /* Relative paths also work... */ $result = $xml->xpath('b/c'); while(list( , $node) = each($result)) { echo 'b/c: ',$node,"\n"; } ?>
This script will display:
/a/b/c: text /a/b/c: stuff b/c: text b/c: stuff
Notice that the two results are equal.

add a note User Contributed Notes
SimpleXMLElement->xpath

matt@roughest[d0t]net
03-Sep-2004 03:17

This may be obvious, but in case you're wondering, the array resulting from
the xpath() operation doesn't retain any of the nodes'
attributes.

In other words, it won't return any of the tags'
attributes

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