我的变量没有被填充，仍然是空的

I have a problem with comparing dates. I pull one date from a database through an API. These dates are stored in an array because one column contains multiple dates and I have to cycle through them to find the next upcoming date. The dates are in the format: 'dd/mm/yy'

$rawDate = $e->calendarsummary;
$filter = preg_replace("/[a-z]/","", $rawDate);
$createArray = explode(',', $filter);
$dates = array_filter(array_map('trim', $createArray));
foreach($dates as $d)
{
     $dateTime = DateTime::createFromFormat('dmy', $d);
     if($dateTime >= $now)
     {
          $finalDate = $dateTime;
          $total = $finalDate->format('l j/m/y');
          break;
     }
}

If I place a var_export of $dateTime after $dateTime = DateTime::createFromFormat('dmy', $d); it returns 'false'. So I'm guessing $dateTime is empty although my array $dates is filled correctly.

a var_export of $dates returns:

array ( 0 => '15/06/13', 1 => '16/06/13', )

and a var export of $now returns todays date: '16/06/13'

So I'm a bit stuck why my variable $DateTime remains empty?

EDIT: Apparantly the return of 'false' means it's an error, so something went wrong when formatting my dates from the array?

If the $dates array contains elements such 15/06/13 so use just use wrong date format. E.g.:

$dateTime = DateTime::createFromFormat('d/m/y', $d);

$dateTime = DateTime::createFromFormat('d/m/y', $d);

not

$dateTime = DateTime::createFromFormat('dmy', $d);

Your dates are in format d/m/y, not dmy. Try the following instead:

$dateTime = DateTime::createFromFormat('d/m/y', $d);

When I do that, I get:

class DateTime#1 (3) { public $date => string(19) "2013-06-15 17:17:12" public $timezone_type => int(3) public $timezone => string(3) "UTC" }

... instead of bool(false).

you could use strtotime as a different method.

$now = date('d/m/y');

foreach($dates as $d)
{

if(strtotime($d) >= strtotime($now))
{

       $finalDate = $dateTime;
       $total = date('l j/m/y', strtotime($d));
       break;
    }

}