I am having issues with iso8601_to_datetime Function, help me

Take out the dashes in the date.

$dateCreated = '20140905T01:34:10.567Z';
$iso = iso8601_to_datetime($dateCreated);
$date = get_date_from_gmt($iso);
echo $iso;
echo $date;

I tested it and it worked … thank you!
Why? How does it work?
Is there any function for this??

I do not understand why removing the dashes in the date. Why the original form of date does not work? ( Could you indicate the documentation for me to study? ).

That is a very old function and there likely isn’t any documentation. Just read the function’s code in the source. It isn’t expecting dashes there.

If you need to convert arbitrary formats, then use the built in PHP code, like strtotime() or some such.

Thank you for your clear and helpful explanation.

I created a function:

function iso8601_without_dashes($iso) {
	$year = substr($iso, 0, 4);
	$month = substr($iso, 5, 2);
	$day = substr($iso, 8, 2);
	$hour = substr($iso, 11, 2);
	$minute = substr($iso, 14, 2);
	$second = substr($iso, 17, 2);
	$timezone = substr($iso, 19);
	return  $year.$month.$day.'T'.$hour.':'.$minute.':'.$second.$timezone;
}