Stream.php

<?php
/*
    This file is part of Plop, a simple logging library for PHP.

    Copyright © 2010-2014 François Poirotte

    Plop is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation, either version 3 of the License, or
    (at your option) any later version.

    Plop is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    GNU General Public License for more details.

    You should have received a copy of the GNU General Public License
    along with Plop.  If not, see <http://www.gnu.org/licenses/>.
*/

namespace Plop\Handler;

class Stream extends \Plop\HandlerAbstract
{
    protected $stream;

    protected static $stderr = null;

    public function __construct($stream = null)
    {
        if ($stream === null) {
            if (self::$stderr === null) {
                self::$stderr = fopen('php://stderr', 'w');
            }
            $stream = self::$stderr;
        }

        parent::__construct();
        $this->stream = $stream;
    }

    protected function flush()
    {
        if (is_resource($this->stream)) {
            fflush($this->stream);
        }
    }

    protected function emit(\Plop\RecordInterface $record)
    {
        $msg = $this->format($record);
        fprintf($this->stream, "%s\n", $msg);
        $this->flush();
    }
}