PHP异常处理

try{  
    ...  
}catch(Exception $e){  
    ...  
}  

throw new Exception(); 

throw new 自定义异常。 

class OutsourceTimeoutException extends Exception {  
    public $status;  
    public function __construct($status, $msg) {  
        $this->status = $status;  
        parent::__construct($msg);    
    }  
}