date (true) - $entry1->date (true); } function sortReverseEntriesByDate ($entry1, $entry2) { return $entry1->date (true) - $entry2->date (true); } function opml_export ($feeds) { // TODO gérer les catégories $txt = '' . "\n"; foreach ($feeds as $feed) { $txt .= "\t" . '' . "\n"; } $txt .= '' . "\n"; return $txt; } function opml_import ($xml) { // TODO }