multi-site 共用同一個 mysql 的話, 例如:
site1:
<?php
//settings.php:
$db_url = 'mysql://root@127.0.0.1/site1';
$db_prefix = array(
'default' => '',
'users' => 'shared_',
'sessions' => 'shared_'
);
?>site2:
<?php
//settings.php:
$db_url = 'mysql://root@127.0.0.1/site2';
$db_prefix = array(
'default' => '',
'users' => 'site1.shared_',
'sessions' => 'site1.shared_'
);
?>