Class Error

<?php
/*
 +++++++++++++++++++++++++++++++++++++++++++++++++++
 +++           Acid Avengers Software            +++
 +++++++++++++++++++++++++++++++++++++++++++++++++++
 +++              Product: Acid RPG              +++
 +++++++++++++++++++++++++++++++++++++++++++++++++++
 +++ Website: http://www.acidavengers.co.uk      +++
 +++ E-Mail:  support@acidavengers.co.uk         +++
 +++++++++++++++++++++++++++++++++++++++++++++++++++
 +++ Created By: Marc "Acid Burn" Towler         +++
 +++ Copyright 2006 - 2007 Acid Avengers         +++
 +++++++++++++++++++++++++++++++++++++++++++++++++++
 +++         File Name: error.engine.php         +++
 +++         File Version: 0.1                   +++
 +++++++++++++++++++++++++++++++++++++++++++++++++++
*/

    //The Exception Class/*
    class Exception {
        function __construct(string $message=NULL, int $code=0) {
            if(func_num_args()) {
                $this->message = $message;
            }

            $this->code = $code;
            $this->file = __FILE__;  //Of throw clause
            $this->line = __LINE__;  //of throw clause
            $this->trace = debug_backtrace();
            $this->string = StringFormat($this);
        }

        protected $message = 'Unknown Exception';  //Exception message
        protected $code = 0;                       //User defined exception code
        protected $file;                           //Source filename of exception
        protected $line;                           //Source line of exception

        private $trace;                            //Backtrace of exception
        private $string;                           //Internal only!!

        final function getMessage() {
            return $this->message;
        }

        final function getCode() {
            return $this->code;
        }

        final function getFile() {
            return $this->file;
        }

        final function getTrace() {
            return $this->trace;
        }

        final function getTraceAsString() {
            return self::TraceFormat($this);
        }

        function _toString() {
            return $this->string;
        }

        static private function StringFormat(Exception $exception) {
            //... a function not available in PHP scripts
            //that returns all relevant information as a string
        }

        static private function TraceFormat(Exception $exception) {
            //... a function not available in PHP scripts
            //that returns the backtrace as a string
        }
    }*/


  //We need base classes for files and databases that extends Exception, 
  //It also needs to be extendable for seperate classes
  class ErrorHandler {
    //Covers for default error handler under it's format:
    // function(int error_type, string error_msg [, string errfile
    //          [, int errline [, array errcontext]]])
    function __construct(int $Num = 0, string $error = NULL, string $file, int $line = 0) {
      if($num != 0) {
        $this->message = $message;
      }

      $this->code = $Num;
      $this->message = $error;
      $this->file = $file;
      $this->line = $line;
    }

      protected $error = 'Unknown Error';  //Here is the error message
      protected $Num = 0;                  //Here is the error code
      protected $file;                     //Here is the problem file
      protected $line = 0;                 //Here is the error line

    function ErrorMessage() {
      return $this->message;
    }

    function ErrorCode() {
      return $this->code;
    }

    function ErrorFile() {
      return $this->file;
    }

    function ErrorLine() {
      return $this->line;
    }
  }


    //File error handler, extended from ErrorHandler class
    class FileError extends ErrorHandler {
        //Start the Logger engine
        $Logger = new LogFileEngine;

        /*********************************************************************
        *** Function: WriteOutput                                          ***
        *** Desc: Writes a friendly error to the screen and logs the error ***
        *********************************************************************/
        function WriteOutput() {
            $output = '<br /><table bgcolor="#CCCCCC"><tr><td>";
            $output .= '<p style="color: #FF0000;"><strong>File Error:</strong> '. $this->ErrorMessage() .'</p>';

            //Check to see what type of error it was
            switch($this->code) {
                case 1, 256:
                    $output .= '<br /><p>This was a fatal error, it has been reported to the staff</p>';
                    $output .= '<p>We apologise for the inconveniance caused.</p>';
                    break;

                case 2, 512:  //This is a warning, not an error, only visible in debug mode so show full details
                    $output .= '<br /><p>A warning has been issued in '. $this->ErrorFile() .' on line '. $this->line();
                    $output .= '</p><p>Although it is only a warning, it could be a security hole.</p>';
                    break;

                case 4:  //This is parse errors, just as bad as a fatal error
                    $output .= '<br /><p>There was a parse error in '. $this->file() .'. It has been reported to the staff</p>';
                    $output .= '<p>We apologise for the inconveniance caused.</p>';
                    break;

                case 8, 1024:  //This is a notice level warning, only visible in debug mode so show full details
                    $output .= '<br /><p>A notice has been issued in '. $this->ErrorFile() .' on line '. $this->line();
                    $output .= '</p><p>This is a security level fix so it has been added to the job list.</p>';
                    break;
            }

            //Finish off the error message and then write to the log file
            $output .= '</td></tr><table>';
            $Logger->FileError($output);

            //Return the message to the user
            return $output;
        }
    }

    //Database error handler, extended from ErrorHandler class
    class DatabaseError extends ErrorHandler {

        //Start the Logger engine
        $Logger = new LogFileEngine;

        function DBError() {

            //Check to see what the error actually is
            switch($this->code) {
            }
        }
    }
?>