Illogical logging by rootLogger

[Florian Platzer]

I created the following log4php configuration file and wondered, why a 

$logger->debug('xyz') 

on ldap-logger created an formatted log4php-output on the webpage:

return array(
                        'rootLogger' => array(
                                'level' => 'FATAL',
                                'appenders' => array('echo'),
                        ),
                        'loggers' => array(
                                'ldap' => array(
                                        'level' => 'DEBUG',
                                        'appenders' => array('email'),
                                ),
                        ),
                        'appenders' => array(
                                'echo' => array(
                                        'class' => 'LoggerAppenderEcho',
                                        'layout' => array(
                                                'class' => 
'LoggerLayoutPattern',
                                                'conversionPattern' => 
"%d{Y-m-d H:i:s} %-5p %c %X{username}: %m in %F at %L%n",
                                        ),
                                ),
                                'email' => array(
                                        'class' => 
'LoggerAppenderMailEvent',
                                        'layout' => array(
                                                'class' => 
'LoggerLayoutPattern',
                                                'conversionPattern' => 
"%d{Y-m-d H:i:s} %-5p %c %X{username}: %m in %F at %L%n",
                                        ),
                                        'from' => 'f...@mail.com',
                                        'to' => 't...@mail.com',
                                        'subject' => 'Error',
                                        'smtpHost' => '0.0.0.0',
                                ),
                        ),
                );


In my understanding, the rootLogger only should log in case of FATAL 
errors!?

Florian