Creation with the date_create_from_format() function:
<?php
$date = "06/08/04";
$obj = DateTime::createFromFormat( '!d/m/y', $date )->format( DateTime::ISO8601 );
?>
Parsing with the date_parse_from_format() function:
<?php
$date = "06/08/04";
print_r( date_parse_from_format( '!y*d*m', $date ) );
?>
Example:
Pattern String Y M D
!y*d*m 06/08/04 false false false
!y*d*m 06/08/04 1970 01 01
!y*d*m 06/08/04 2006 01 01
!y*d*m 06/08/04 2006 01 01
!y*d*m 06/08/04 2006 01 08
!y*d*m 06/08/04 2006 01 08
!y*d*m 06/08/04 2006 04 08
!y*d*m 06/08/04 2006 04 08
