Description:
------------
This bug relates to https://bugs.php.net/bug.php?id=72592 which has been closed as duplicated while it's different from the bug it's supposed to duplicate (64414).

Datetime::createFromFormat() return false and generates 2 errors in getLastErrors() when giving the format 'c' and a string that has actually be output with format('c').

Side note: it works fine when passing the format 'Y-m-d\TH:i:sP' to createFromFormat()

Test script:
---------------
var_dump(DateTime::createFromFormat('c', (new DateTime('2020-02-02'))->format('c')));
echo implode("\n", DateTime::getLastErrors()['errors']);

Expected result:
----------------
object(DateTime)#3 (3) {
  ["date"]=>
  string(26) "2020-02-02 00:00:00.000000"
  ["timezone_type"]=>
  int(1)
  ["timezone"]=>
  string(6) "+00:00"
}


Actual result:
--------------
false
The format separator does not match
Trailing data