Interface Overview - Mastering phpMyAdmin 3.1 for Effective MySQL Management - page 54

For this, the $cfg['LeftDisplayServers'] parameter must be set to TRUE . The
list of servers can have two forms—a drop-down list or links. Which form appears
depends on $cfg['DisplayServersList'] . By default, this parameter is set to
FALSE , so we see a drop-down list of servers. Setting $cfg['DisplayServersList']
to TRUE produces a list of links to all defined servers:
Handling many databases or tables
This section describes some techniques to cope with a server holding a huge number
of databases and tables.
Limits on the interface
Before phpMyAdmin 2.11, it was difficult to work with the interface if we had access
to hundreds or even thousands of databases, or hundreds of tables in the same
database. Loading of the navigation panel was slow, or did not work at all. In 2.11,
the interface has been reworked to take care of this.
Two new parameters, shown here with their default values, establish a limit on
the number of databases and tables displayed, by adding a page selector and
navigation links:
$cfg['MaxDbList'] = 100;
$cfg['MaxTableList'] = 250;
The effect of $cfg['MaxDbList'] can be seen on the main panel in Server view: