Testing awaitData and tailable cursors against mongod

tailable-cursor.php

$m = new MongoClient();
$m->test->foo->drop();
$m->test->createCollection('foo', ['capped' => true, 'size' => 67108864]);
$c = $m->test->foo;
$c->insert(['x' => 1]);
$cursor = $c->find()->awaitData()->tailable();

while (1) {
    if (!$cursor->hasNext()) {
        if ($cursor->dead()) {
            break;
        }
        // optionally sleep a few seconds before re-polling
	continue;
    }

    var_dump($cursor->getNext());
}