Sabre\CardDAV\Backend\PDO::createCard PHP Method

    function createCard($addressBookId, $cardUri, $cardData)
    {
        $stmt = $this->pdo->prepare('INSERT INTO ' . $this->cardsTableName . ' (carddata, uri, lastmodified, addressbookid, size, etag) VALUES (?, ?, ?, ?, ?, ?)');
        $etag = md5($cardData);
        $stmt->execute([$cardData, $cardUri, time(), $addressBookId, strlen($cardData), $etag]);
        $this->addChange($addressBookId, $cardUri, 1);
        return '"' . $etag . '"';
    }

 /**
  * @depends testCreateCard
  */
 function testGetMultiple()
 {
     $result = $this->backend->createCard(1, 'card2', 'data2');
     $result = $this->backend->createCard(1, 'card3', 'data3');
     $check = [['id' => 1, 'uri' => 'card1', 'carddata' => 'card1', 'lastmodified' => 0], ['id' => 2, 'uri' => 'card2', 'carddata' => 'data2', 'lastmodified' => time()], ['id' => 3, 'uri' => 'card3', 'carddata' => 'data3', 'lastmodified' => time()]];
     $result = $this->backend->getMultipleCards(1, ['card1', 'card2', 'card3']);
     foreach ($check as $index => $node) {
         foreach ($node as $k => $v) {
             $expected = $v;
             $actual = $result[$index][$k];
             switch ($k) {
                 case 'lastmodified':
                     $this->assertInternalType('int', $actual);
                     break;
                 case 'carddata':
                     if (is_resource($actual)) {
                         $actual = stream_get_contents($actual);
                     }
                     // No break intended.
                 // No break intended.
                 default:
                     $this->assertEquals($expected, $actual);
                     break;
             }
         }
     }
 }