PHP Zotero_DB::addCallback示例

require 'StatsD.inc.php';
// Use DB read replicas for GET requests
if (isset($_SERVER['REQUEST_METHOD']) && $_SERVER['REQUEST_METHOD'] == 'GET') {
    Zotero_DB::readOnly(true);
}
// Database callbacks
Zotero_DB::addCallback("begin", array("Zotero_Notifier", "begin"));
Zotero_DB::addCallback("commit", array("Zotero_Notifier", "commit"));
Zotero_DB::addCallback("callback", array("Zotero_Notifier", "reset"));
Zotero_NotifierObserver::init();
// Memcached
require 'Memcached.inc.php';
Z_Core::$MC = new Z_MemcachedClientLocal(Z_CONFIG::$SYNC_DOMAIN, array('disabled' => !Z_CONFIG::$MEMCACHED_ENABLED, 'servers' => Z_CONFIG::$MEMCACHED_SERVERS));
Zotero_DB::addCallback("begin", array(Z_Core::$MC, "begin"));
Zotero_DB::addCallback("commit", array(Z_Core::$MC, "commit"));
Zotero_DB::addCallback("reset", array(Z_Core::$MC, "reset"));
//
// Set up AWS service factory
//
$awsConfig = ['region' => !empty(Z_CONFIG::$AWS_REGION) ? Z_CONFIG::$AWS_REGION : 'us-east-1', 'version' => 'latest', 'signature' => 'v4'];
// IAM role authentication
if (empty(Z_CONFIG::$AWS_ACCESS_KEY)) {
    // If APC cache is available, use that to cache temporary credentials
    if (function_exists('apc_store')) {
        $cache = new \Doctrine\Common\Cache\ApcCache();
    } else {
        $cache = new \Doctrine\Common\Cache\FilesystemCache(Z_ENV_BASE_PATH . 'tmp/cache');
    }
    $awsConfig['credentials'] = new \Aws\DoctrineCacheAdapter($cache);
} else {
    $awsConfig['credentials'] = ['key' => Z_CONFIG::$AWS_ACCESS_KEY, 'secret' => Z_CONFIG::$AWS_SECRET_KEY];