Zend_Log supports logging to multiple log adapters. It can either send a message to all logs, or target a message to a specific log.

When creating multiple loggers, each log must be given a unique name. Loggers are registered with the registerLogger() method, with the log name supplied as the optional second argument.

In the example below, two loggers are created: one for the console, and one for a file. They will be given the names Console and File, respectively.

require_once 'Zend/Log.php';                 // Zend_Log base class
require_once 'Zend/Log/Adapter/File.php';    // File log adapter
require_once 'Zend/Log/Adapter/Console.php'; // Console log adapter

Zend_Log::registerLogger(new Zend_Log_Adapter_File('/logs/framework.txt'), 'File');
Zend_Log::registerLogger(new Zend_Log_Adapter_Console(), 'Console');