<form action=""> vs. <form action="$_SERVER['PHP_SELF']">

[TS]

Hello,

If action is the empty string, let action be the document's address of the form document.

Interessant an dieser Stelle:

The action of an element is the value of the element's formaction attribute, if the element is a submit button and has such an attribute, or the value of its form owner's action attribute, if it has one, or else the empty string.

Aber action="" ist nicht erlaubt.

in der IDL aber schon.

Liebe Grüße
Tom S.