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<?php
require 'vendor/autoload.php';
use PicoFeed\Reader\Reader;
use PicoFeed\PicoFeedException;
try {
// Fetch from your database the previous values of the Etag and LastModified headers
$etag = '...';
$last_modified = '...';
$reader = new Reader;
// Provide those values to the download method
$resource = $reader->download('http://linuxfr.org/news.atom', $last_modified, $etag);
if ($resource->isModified()) {
$parser = $reader->getParser(
$resource->getUrl(),
$resource->getContent(),
$resource->getEncoding()
);
$feed = $parser->execute();
// Save your feed in your database
// ...
// Store the Etag and the LastModified headers in your database
$etag = $resource->getEtag();
$last_modified = $resource->getLastModified();
// ...
}
else {
echo 'Not modified, nothing to do!';
}
}
catch (PicoFeedException $e) {
// Do something...
}
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