Weird Behavior When Comparing Datetimes

Asked Apr 19 '18 at 22:59

Active Apr 19 '18 at 23:17

Viewed 59 times

My problem is when I uncomment those print_r's the datetime objects are comparing properly. When I don't print them first they don't compare. I have literally no idea why printing them first makes them compare properly, or what could be causing this behavior.

$difference = $edate->diff($sdate);
$check = date_interval_create_from_date_string('5 days');

//print_r($difference);
//print_r($check);


$data_array = [];

if ($difference < $check) {
     //Do Stuff
}

asked Apr 19 '18 at 22:59

Mason Stedman

What's the format of $sdate ? – zzarbi Apr 19 '18 at 23:02
sdate and edate are DateTimes – Mason Stedman Apr 19 '18 at 23:03
1

I'm not sure why printing it would change the "data type" of your code, but this might be a related answer https://stackoverflow.com/questions/8724710/php-datetimediff-results-comparison. – zzarbi Apr 19 '18 at 23:05
Yea, I get the same result when I var_dump them first too. Weirdest issue. – Mason Stedman Apr 19 '18 at 23:07
1

See also : https://bugs.php.net/bug.php?id=69587. You also could compare `$difference->f < $check->f`. – Syscall Apr 19 '18 at 23:08
It seems print_r() does odds things https://stackoverflow.com/questions/17066034/print-r-adds-properties-to-datetime-objects – zzarbi Apr 19 '18 at 23:15
Oops, I misread the question a bit and I think I closed this incorrectly. Sorry about that. – Don't Panic Apr 19 '18 at 23:16
This is probably a better link: https://stackoverflow.com/questions/9547855/are-php-dateinterval-comparable-like-datetime – Don't Panic Apr 19 '18 at 23:19

Weird Behavior When Comparing Datetimes

0 Answers0