Calculate dates

[SGUserFace]

How can I get the real result (positive and negative)

$Today = new DateTime();
$Date = DateTime::createFromFormat('Y-m-d', '2017-05-01');
$interval = $Today->diff($Date);
 

It changes every date to negative

$interval->invert = 1;

[NogDog]

You could get the number of days from [FONT=Courier New]$interval->days[/FONT] .

Or you could get it in terms of years, months, and days via the ->y, ->m, and ->d variables.

[NogDog]

Oh, I may have misunderstood the question. A little testing showed me that ->interval was 1 if $Date was in the past, and 0 if $Date was in the future, so if you want the interval to be negative in one of those cases, I guess you could just test for it?

$days = $interval->days;
if($interval->invert) {
    $days = $days * -1;
}