[fw-general] Comparing difference between 2 dates with zend_Date

[tony stamp]

Hello

I am trying to make a viewhelper that will return a css class based on the
difference between two dates. I am having trouble obtaining the actual
duration between the dates. Here is what i have:

$date1 = new Zend_Date($date1);
                        $date2 = new Zend_Date($date2);
                        
                        $difference = $date1->compare($date2, Zend_Date::DAY);
                        
                        if($dateDifference > 30){
                                return 'class = "dateOK"';
                        }
                        
                        if($dateDifference < 15){
                                return 'class = "dateSoon"';
                        }
                        
                        if($dateDifference < 3){
                                return 'class = "dateImminent"';
                        }

All i am looking for is quite simply the difference between the two dates -
how do i do this with zend_date? 
Thanks.

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