/**
* @return PDO PDO object.
*/
static function getPDOConnection() : PDO
{
if (self::$pdo == null) {
$cfg = self::getCfg('mysql')['read-only'];
self::$pdo = new PDO("mysql:host={$cfg['server']};dbname={$cfg['db']};charset=utf8mb4", $cfg['username'], $cfg['password']);
self::$pdo->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION);
self::$pdo->setAttribute(PDO::ATTR_EMULATE_PREPARES, false);
}
return self::$pdo;
}
