要选锟斤拷锟斤拷锟捷库，使锟矫ｏ拷
<?php
$connection = new MongoClient();
$db = $connection->dbname;
?>
锟斤拷锟斤拷锟斤拷菘獠伙拷锟揭拷锟角帮拷锟斤拷茫锟斤拷锟斤拷锟绞癸拷锟斤拷锟斤拷锟绞憋拷颍突锟斤拷远锟斤拷锟斤拷锟斤拷锟�
要小锟侥碉拷锟角ｏ拷锟斤拷锟斤拷懿锟叫★拷慕锟斤拷锟斤拷锟揭伙拷锟斤拷碌锟斤拷锟斤拷菘猓伙拷锟斤拷锟斤拷锟斤拷值拇锟斤拷锟� 锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷校锟斤拷诙锟斤拷锟绞癸拷锟�"同一锟斤拷"锟斤拷锟捷匡拷时 name 锟斤拷锟斤拷锟斤拷锟狡葱达拷锟� anme锟斤拷
<?php
$connection = new MongoClient();
$db = $connection->mybiglongdbname;
// do some stuff
$db = $connection->mybiglongdbanme;
// now connected to a different database! 注锟斤拷锟绞毖★拷锟斤拷锟斤拷锟揭伙拷锟斤拷锟斤拷菘猓�
?>
MongoDB 锟斤拷锟斤拷牡锟斤拷锟斤拷卸锟斤拷锟斤拷菘锟斤拷锟斤拷锟斤拷锟较杆碉拷锟斤拷锟�