Zend_Log example

protected function _loggerSanity()
    {
        if (!isset($this->_options['logging']) || !$this->_options['logging']) {
            return;
        }

        if (isset($this->_options['logger']) && $this->_options['logger'] instanceof Zend_Log) {
            return;
        }

        // Create a default logger to the standard output stream         $logger = new Zend_Log(new Zend_Log_Writer_Stream('php://output'));
        $logger->addFilter(new Zend_Log_Filter_Priority(Zend_Log::WARN, '<='));
        $this->_options['logger'] = $logger;
    }

    /** * Log a message at the WARN (4) priority. * * @param string $message * * @throws Zend_Cache_Exception */
    

return;
        }

        if (isset($this->_directives['logger'])) {
            if ($this->_directives['logger'] instanceof Zend_Log) {
                return;
            }
            Zend_Cache::throwException('Logger object is not an instance of Zend_Log class.');
        }

        // Create a default logger to the standard output stream         $logger = new Zend_Log(new Zend_Log_Writer_Stream('php://output'));
        $logger->addFilter(new Zend_Log_Filter_Priority(Zend_Log::WARN, '<='));
        $this->_directives['logger'] = $logger;
    }

    /** * Log a message at the WARN (4) priority. * * @param string $message * * @throws Zend_Cache_Exception */