<?php

/*
Copyright (c) 2008-2012, www.redips.net All rights reserved.
Code licensed under the BSD License: http://www.redips.net/license/
*/


/** 
 * Logging class:
 * - contains lfile, lwrite and lclose public methods
 * - lfile sets path and name of log file
 * - lwrite writes message to the log file (and implicitly opens log file)
 * - lclose closes log file
 * - first call of lwrite method will open log file implicitly
 * - message is written with the following format: [d/M/Y:H:i:s] (script name) message
 */
class Logging {
  // declare log file and file pointer as private properties
  private $log_file, $fp;
  // set log file (path and name)
  public function lfile($path) {
    $this->log_file = $path;
  }
  // write message to the log file
  public function lwrite($message, $var = null) {
    // if file pointer doesn't exist, then open log file
    if (!is_resource($this->fp)) {
      $this->lopen();
    }
    // define script name
    $script_name = pathinfo($_SERVER['PHP_SELF'], PATHINFO_FILENAME);
    // define current time and suppress E_WARNING if using the system TZ settings
    // (don't forget to set the INI setting date.timezone)
    $time = @date('[d/M/Y:H:i:s]');
    // write current time, script name and message to the log file
    fwrite($this->fp, "$time ($script_name) $message" . PHP_EOL);
    if ($var) {
      fwrite($this->fp, print_r($var, true) . PHP_EOL);
    }
  }
  // close log file (it's always a good idea to close a file when you're done with it)
  public function lclose() {
    fclose($this->fp);
  }
  // open log file (private method)
  private function lopen() {
    // in case of Windows set default log file
    if (strtoupper(substr(PHP_OS, 0, 3)) === 'WIN') {
      $log_file_default = 'c:/php/logfile.txt';
    }
    // set default log file for Linux and other systems
    else {
      $log_file_default = '/tmp/logfile.txt';
    }
    // define log file from lfile method or use previously set default
    $lfile = $this->log_file ? $this->log_file : $log_file_default;
    // open log file for writing only and place file pointer at the end of the file
    // (if the file does not exist, try to create it)
    $this->fp = fopen($lfile, 'a') or exit("Can't open $lfile!");
  }
}

?>

include_once(PHPWG_PLUGINS_PATH.basename(dirname(__FILE__)).'/include/loglib.inc.php');
$log = new Logging();
$log->lfile(PHPWG_ROOT_PATH.'logs/mylog.txt');
$log->lwrite('function install');
$log->lwrite('default_options', $this->default_options);
$log->lclose();