PHP convert date interval diff to decimal

Question

I\'m trying to convert the difference between two dates into a total year count, right now I\'m using this:

 $datetime1 = new DateTime(\'2009-10-11\'); 
 $da         


        

Answer 1

Simpler and more accurate interval converter to days/hours/minutes/seconds:

function DateDiffInterval($sDate1, $sDate2, $sUnit='H') {
//subtract $sDate2-$sDate1 and return the difference in $sUnit (Days,Hours,Minutes,Seconds)
    $nInterval = strtotime($sDate2) - strtotime($sDate1);
    if ($sUnit=='D') { // days
        $nInterval = $nInterval/60/60/24;
    } else if ($sUnit=='H') { // hours
        $nInterval = $nInterval/60/60;
    } else if ($sUnit=='M') { // minutes
        $nInterval = $nInterval/60;
    } else if ($sUnit=='S') { // seconds
    }
    return $nInterval;
} //DateDiffInterval