PHP CLI Class for logging warning quiet and verbose

class.php

namespace CLI;

class Log
{
    protected $_verbose = false;
    protected $_debug = false;
    protected $_quiet = false;

    protected function _log ( $message, $lineFeed = true )
    {
        if ( $lineFeed )
        {
            print PHP_EOL;
        }

        if ( $this->_quiet )
        {
            return;
        }

        print $message;

        flush();
    }

    protected function _verbose ( $message, $lineFeed = true)
    {
        if ( $this->_verbose )
        {
            $this->_log($message, $lineFeed);
        }
        else
        {
            $this->_log('.', false);
        }
    }

    protected function _debug ( $message, $lineFeed = true)
    {
        if ( $this->_debug )
        {
            $this->_log($message, $lineFeed);
        }
        else
        {
            $this->_log('.', false);
        }
    }

    protected function _warning ( $message, $lineFeed = true )
    {
        if ( !$this->_quiet )
        {
            $this->_log($message, $lineFeed);
        }
    }

    protected function _error ( $message, $lineFeed = true )
    {
        $this->_log($message, $lineFeed);
    }

    protected function _exit ($flag)
    {
        print PHP_EOL;
        return exit( $flag );
    }
}

cli-output.md