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easyrdf/examples/parse_rss.php
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| <?php | |
| /** | |
| * Parse an RSS 1.0 feed and display titles | |
| * | |
| * The example demonstrates fetching an RSS 1.0 feed from the | |
| * web and then parsing as RDF/XML. The channel is found by getting | |
| * the first object of type rss:channel (a file should only contain | |
| * a single RSS channel). | |
| * | |
| * In RSS 1.0, the list of items in the feed are listed by relating | |
| * the rss:channel to the rss:items using an rdf:Seq. In EasyRdf | |
| * this maps into an EasyRdf\Container object, which can be | |
| * iterated over using a foreach() loop. | |
| * | |
| * Note that this example only works with RSS 1.0 and no | |
| * other version (0.90, 1.1 and 2.0) as they are not RDF. | |
| * | |
| * @package EasyRdf | |
| * @copyright Copyright (c) 2013-2014 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 RSS 1.0 Parsing example</title> | |
| <meta http-equiv="content-type" content="text/html; charset=utf-8" /> | |
| </head> | |
| <body> | |
| <h1>EasyRdf RSS 1.0 Parsing example</h1> | |
| <?= form_tag() ?> | |
| <?= text_field_tag('uri', 'http://planetrdf.com/index.rdf', array('size'=>50)) ?> | |
| <?= submit_tag() ?> | |
| <?= form_end_tag() ?> | |
| <?php | |
| if (isset($_REQUEST['uri'])) { | |
| $graph = \EasyRdf\Graph::newAndLoad($_REQUEST['uri'], 'rdfxml'); | |
| $channel = $graph->get('rss:channel', '^rdf:type'); | |
| print "<p>Channel: ".link_to($channel->label(), $channel->get('rss:link'))."</p>\n"; | |
| print "<p>Description: ".$channel->get('rss:description')."</p>\n"; | |
| print "<ol>\n"; | |
| foreach($channel->get('rss:items') as $item) { | |
| print "<li>".link_to($item->get('rss:title'), $item)."</li>\n"; | |
| } | |
| print "</ol>\n"; | |
| } | |
| ?> | |
| </body> | |
| </html> |