http://stackoverflow.com/questions/27240421/php-asynchronous-mysql-query
http://php.net/manual/en/mysqlinfo.library.choosing.php
$mysqli = new mysqli("localhost", "root", "", "test"); // ee($mysqli); $a = $mysqli->query("select sleep (2)", MYSQLI_ASYNC); echo ‘run other stuff ‘."\n"; $result = $mysqli->reap_async_query(); $resultArray = $result->fetch_assoc(); ee($resultArray);
原文：http://www.cnblogs.com/siqi/p/4810747.html