Re: Casting from parent class to child

David Harkness wrote:

Casting does not change an object. You must copy the relevant value(s) from the object returned into a new DateTimePlus. Since DateTime's constructor takes only a string, and I assume it won't accept your format directly,

unless you implement __toString I believe (not tested)

you're better off converting the string into a Unix timestamp and creating a new object from that. However, I leave that optimization to you. The following code is sufficient:

    $plus = new DateTimePlus();
    $plus.setTimestamp(parent::createFromFormat("H.i d.m.Y",

$string).getTimestamp());

    return $plus;

David