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<?php
/**
* Display the basic information in a FOAF document
*
* The example starts by loading the requested FOAF document
* from the web. It then tries to work out if the URI given
* was for the person or the document about the person.
*
* If a person is found, then the person's name, homepage
* and description are shown, along with a list of the
* person's friends.
*
* @package EasyRdf
* @copyright Copyright (c) 2009-2013 Nicholas J Humfrey
* @license http://unlicense.org/
*/
require_once realpath(__DIR__.'/..')."/vendor/autoload.php";
require_once __DIR__."/html_tag_helpers.php";
?>
<html>
<head><title>EasyRdf FOAF Info Example</title></head>
<body>
<h1>EasyRdf FOAF Info Example</h1>
<?= form_tag() ?>
<?= text_field_tag('uri', 'http://njh.me/foaf.rdf', array('size'=>50)) ?>
<?= submit_tag() ?>
<?= form_end_tag() ?>
<?php
if (isset($_REQUEST['uri'])) {
$graph = \EasyRdf\Graph::newAndLoad($_REQUEST['uri']);
if ($graph->type() == 'foaf:PersonalProfileDocument') {
$person = $graph->primaryTopic();
} elseif ($graph->type() == 'foaf:Person') {
$person = $graph->resource();
}
}
if (isset($person)) {
?>
<dl>
<dt>Name:</dt><dd><?= $person->get('foaf:name') ?></dd>
<dt>Homepage:</dt><dd><?= link_to($person->get('foaf:homepage')) ?></dd>
</dl>
<?php
echo "<h2>Known Persons</h2>\n";
echo "<ul>\n";
foreach ($person->all('foaf:knows') as $friend) {
$label = $friend->label();
if (!$label) {
$label = $friend->getUri();
}
if ($friend->isBNode()) {
echo "<li>$label</li>";
} else {
echo "<li>".link_to_self($label, 'uri='.urlencode($friend))."</li>";
}
}
echo "</ul>\n";
echo "<h2>Interests</h2>\n";
echo "<ul>\n";
foreach ($person->all('foaf:interest') as $interest) {
$label = $interest->label();
if ($label) {
if ($interest->isBNode()) {
echo "<li>$label</li>";
} else {
echo "<li>".$interest->htmlLink($label)."</li>";
}
}
}
echo "</ul>\n";
}
if (isset($graph)) {
echo "<br />";
echo $graph->dump();
}
?>
</body>
</html>
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