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php: how can I work with html as xml ? how do i find specific nodes and get the text inside these nodes?

Answer 1

+1 A:

Could use SimpleXML - see the example below:

$string = "<?xml version='1.0'?> 
<html>
<body>
 <div class='transform'>
    <span>1</span>
 </div>
 <div>
    <span>2</span>
 </div>
 <div class='transform'>
    <span>3</span>
 </div>
</body>
</html>";

$xml = simplexml_load_string($string);
$result = $xml->xpath("//div[@class = 'transform']");

foreach($result as $node) {
  echo "span " . $node->span . "<br />";
}

Updated it with xpath...

xil3 2010-07-01 10:41:20

i want to query for divs that contains the attribute `class=transform`

ufk 2010-07-01 14:10:17

updated the main post with more info

ufk 2010-07-01 14:13:24

Just updated the answer - that should do what you need.

xil3 2010-07-01 14:44:25

Answer 2

A:

ok what i wanted can be easily achieved using php xpath:

example:

http://ditio.net/2008/12/01/php-xpath-tutorial-advanced-xml-part-1/

ufk 2010-07-01 14:33:41

Answer 3

+1 A:

You can use xpath to address the items. For that particular query, you'd use:

div[contains(concat(" ",@class," "), concat(" ","transform"," "))]

Full PHP example:

<?php
  $document = new DomDocument();
  $document->loadHtml($html);
  $xpath = new DomXPath($document);
  foreach ($xpath->query('div[contains(concat(" ",@class," "), concat(" ","transform"," "))]') as $div) {
    var_dump($div);
  }

If you know CSS, here's a handy CSS-selector to XPath-expression mapping: http://plasmasturm.org/log/444/ -- You can find the above example listed there, as well as other common queries.

If you use it a lot, you might find my csslib library handy. It offers a wrapper csslib_DomCssQuery, which is similar to DomXPath, but using CSS-selectors instead.

troelskn 2010-07-01 14:43:26

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php: how can I work with html as xml ? how do i find specific nodes and get the text inside these nodes?

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