Exceptions.php

<?php



abstract class CustomException extends Exception {
	protected $message = 'Unknown exception';     // Exception message
	private   $string;                            // Unknown
	protected $code    = 0;                       // User-defined exception code
	protected $file;                              // Source filename of exception
	protected $line;                              // Source line of exception
	private   $trace;                             // Unknown

	public function __construct($message = null, $code = 0){
		if (!$message) {
			throw new $this('Unknown '. get_class($this));
		}
		parent::__construct($message, $code);
	}

	public function __toString(){
		return get_class($this) . " '{$this->message}' in {$this->file}({$this->line})\n". "{$this->getTraceAsString()}";
	}
}

// MySQL Exceptions
class MySQLConnectionException extends CustomException{}
class MySQLInsertException extends CustomException{}
class MySQLDeleteException extends CustomException{}

// Generic Exceptions

?>