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17 years ago
If you want to find easly all records satisfying some condition in XML data like 



....

   <book id="bk101">

      <author>Gambardella, Matthew</author>

      <title>XML Developer's Guide</title>

      <genre>Computer</genre>

      <price>44.95</price>

   </book>

   <book id="bk102">

      <author>Ralls, Kim</author>

      <title>Midnight Rain</title>

      <genre>Fantasy</genre>

      <price>5.95</price>

   </book>

...



try example below



<?php



$xmlStr = file_get_contents('data/books.xml');

$xml = new SimpleXMLElement($xmlStr);

// seach records by tag value:

// find all book records with price higher than 40$

$res = $xml->xpath("book/price[.>'40']/parent::*");

print_r($res);



?>



You will see response like:

Array (

[0] => SimpleXMLElement Object

        (

            [@attributes] => Array

                (

                    [id] => bk101

                )



            [author] => Gambardella, Matthew

            [title] => XML Developer's Guide

            [genre] => Computer

            [price] => 44.95

            [publish_date] => 2000-10-01

            [description] => An in-depth look at creating applications 

      with XML.

        )

...
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