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phpdomxml-0.9.0 Usage Examples (and test-case)

This set of usage examples shows live output of the presented code snippets. And besides being a useful example base, it also serves as a unit test system for the functionality of phpdomxml. Please pick a test batch to run from the list below.

1. Creating a DOM from file and by using methods (3 tests)
2. Dynamic DOM creation with XML_Node's insertBefore method (3 tests)
3. CharacterData interface tests (6 tests)
4. XML_Node's removeChild method test (3 tests)
5. Read and show Slashdot's RDF-feed (1 test)


Running batch: Read and show Slashdot's RDF-feed

Example #1

Comment:

This code reads the Resource Description Framework (RDF) of Slashdot and presents it in the browser, using a small piece of javascript. A list of all items in the RDF is retreived using the getElementdBytagName method. In a loop, all items are traversed and the properties of each item are put in an associative array for easier access.

Code:

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<script type="text/javascript">
    function dspSwitch(id) {
        var d = document.getElementById(id).style;
        d.display = (d.display == 'block')?'none':'block';
    }
</script>
<?php
    
// include xml lib
    
include_once('../lib.xml.inc.php');

    
// convert an rdf item to an associative array
    
function asArray($item) {
        
$a = array();
        while (
$item) {
            
$a[$item->nodeName] = $item->firstChild->nodeValue;
            
$item $item->nextSibling;
        }
        return 
$a;
    }

    
// get the feed
    
$rdf = new XML('http://slashdot.org/index.rss');

    
// get article items
    
$items $rdf->getElementsByTagName('item');

    
// loop and gather info
    
$out '';
    foreach (
$items as $k => $item) {
        
$a asArray($item->firstChild);
        
$out .= '<a href="javascript:;" '.
            
'onclick="dspSwitch(\'item'.$k.'\')">'.
            
$a['title'].'</a> ('.$a['dc:date'].')<br />'.
            
'<div id="item'.$k.'" style="display:none">'.
            
$a['description'].
            
'&nbsp;[<a href="'.$a['link'].'">more</a>]'.
            
'<br /><br /></div>';
    }

    
// display info
    
echo $out;

?>

Output:

What Happens When Epidemiologists are Undermined By Politics? (2020-03-30T07:34:00+00:00)
Ask Slashdot: Should the Internet Be A Public Utility? (2020-03-30T04:34:00+00:00)
Was Magellan's Voyage Riskier Than Sending Humans to Mars? (2020-03-30T01:44:00+00:00)
America's FDA Eases Restrictions on Mask-Sterilizing Technology Amid Coronavirus Shortages (2020-03-29T23:47:00+00:00)
Black Hole Photo May Also Have Captured Light From Around the Universe (2020-03-29T22:51:00+00:00)
Could Robots Help Us Fight Infectious Diseases? (2020-03-29T21:49:00+00:00)
Ambitious Project Seeks to Re-Create Every Structure on Earth in Minecraft (2020-03-29T20:51:00+00:00)
After 5 Years of Construction, 'Space Fence' Finally Declared Operational (2020-03-29T19:59:00+00:00)
Is Uranus Losing Its Atmosphere? (2020-03-29T18:59:00+00:00)
Bay Area Group Pushes $1,000 Universal Basic Income For Everyone (2020-03-29T17:34:00+00:00)
Remote City Council Meeting Interrupted By Pornographic Videos (2020-03-29T16:34:00+00:00)
Whatever Happened to Ashley Madison? Affairs in the Time of Coronavirus (2020-03-29T15:34:00+00:00)
Zoom Removes Code That Sends Data to Facebook (2020-03-29T14:41:00+00:00)
Astronomers Have Finally Found the Edge of the Milky Way (2020-03-29T13:34:00+00:00)
US Officials Use Mobile Ad Location Data to Study How COVID-19 Spreads (2020-03-29T10:34:00+00:00)