wyjatki, a raczej problem z nimi Opcje

[deniol13]

witam, ostatnio napotkalem sie z wyjatkami (exception, nie wiem czy dobrze przetlumaczylem)
no i mam taka prosta klase do wyjatkow

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<?php
/**
 * visionBoard
 *
 * @author	    Denis Wróbel
 * @package         visionBoard
 * @license	    <a href="http://www.gnu.org/licenses/gpl-3.0.html" target="_blank">http://www.gnu.org/licenses/gpl-3.0.html</a>
 * @version	    0.1
 * 
 */
 
class visionException extends Exception
{
	/**
	 * Exception type
	 */
 
	private $exc_type		= '';
 
	/**
	 * Exception message
	 */
 
	private $exc_message	= '';
 
	/**
	 * Exception cause
	 */
 
	private $exc_cause		= '';
 
	// ------------------------------------------------------------------------
 
	/**
	 * Exception constructor
	 *
	 * @param string $ext_type
	 * @param string $exc_message
	 */
 
	function __construct( $ext_type, $exc_message, $exc_cause)
	{
 
		// Pass variables from function arguments to in-class variables
		$this -> exc_type	= $ext_type;
		$this -> exc_message	= $exc_message;
		$this -> exc_cause	= $exc_cause;
 
	}
 
	/**
	 * Returns exception page HTML
	 */
 
	function __toString()
	{
		return $this->exc_cause . $this->exc_message . $this->exc_type;
	}
}
 
?>
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no i jak cos nie pasuje to robie w klase macierzystej ze tak to nazwe

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throw new visionException( 'COS', 'COS2', 'COS3' );
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no i efekt

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Fatal error: Uncaught COS3COS2COS thrown in E:\htdocs\vision\index.php on line 25
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nie umiem sobie z tym poradzic (IMG:style_emoticons/default/sad.gif) pomocy

[skowron-line]

W czym problem bo nie rozumiem (IMG:style_emoticons/default/questionmark.gif)
może chodzi tobie o try catch