A Logger is created by calling the Zend_Log::registerLogger() method with a
Zend_Log_Adapter_Interface instance as an argument.
require_once 'Zend/Log.php'; // Zend_Log base class
require_once 'Zend/Log/Adapter/File.php'; // File log adapter
// Register the file logger
Zend_Log::registerLogger(new Zend_Log_Adapter_File('/logs/simple.txt'));
Messages are then sent to the log with Zend_Log::log().
/**
* Send a message to the log. An optional second argument specifies the log
* level. If no level is supplied, LEVEL_DEBUG is assumed.
*/
Zend_Log::log('First logging message.');
/**
* Log a severe message.
*/
Zend_Log::log('A serious error has occurred.', Zend_Log::LEVEL_SEVERE);