PHP DateTime equality

How can I compare if two DateTime obje开发者_运维技巧cts have the same day,month and year? The problem is they have different hours/min/seconds.

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There's no nice way of doing that with DateTime objects. So you'll have to do, lets say, not so nice things.

$nDate1 = clone $date1;
$nDate2 = clone $date2;

//We convert both to UTC to avoid any potential problems.
$utc = new DateTimeZone('UTC');
$nDate1->setTimezone($utc);
$nDate2->setTimezone($utc);

//We get rid of the time, and just keep the date part.
$nDate1->setTime(0, 0, 0);
$nDate2->setTime(0, 0, 0);

if ($nDate1 == $nDate2) {
    //It's the same day
}

This will work, but like I said, it's not nice.

On a side note, recent experience tells me its always best to make sure both dates are on the same timezone, so I added the code for it just in case.

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How about:

$date1->format('Ymd') == $date2->format('Ymd');

:wq

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if(date('dmY', $date1) == date('dmY', $date2))

You can put it in a function...

function compare_dates($date1, $date2){
  if(date('dmY', $date1) == date('dmY', $date2))
    return true ;

  return false ;
}

is most useful ;)