<?php
include(".\Zend\Log.php");
include(".\Zend\Log\Writer\Stream.php");
 
$logger = new Zend_Log(); 
$writer = new Zend_Log_Writer_Stream('./randomLogfile.log');  // 'php://output' - for writing messages in standart output
$format = date('y-m-d [G:i:s]').' %priorityName% : %message%' . PHP_EOL; 
$formatter = new Zend_Log_Formatter_Simple($format);
$writer->setFormatter($formatter);
$logger->addWriter($writer); 
$filter = new Zend_Log_Filter_Priority(Zend_Log::CRIT); 
$logger->addFilter($filter);
 
$logger->info('bla bla');
$logger->emerg('aj aj aj');
 
?>