Jan Lehnardt wrote:
> [...]
> * Constants.
>
> The�Zend�Engine�2.0�introduces�per-class�constants.
>
> Example:
>
> <?php
> class�Foo�{
> const�constant�=�'constant';
> }
>
> echo�'Foo::constant�=�'�.�Foo::constant�.�"\n";
> ?>
>
> Old�code�that�has�no�user-defined�classes�or�functions
> named�'const'�will�run�without�modifications.
>
> [...]
thanks, but i think constants are not the same as readonly variables!!
a constant - as the name sais - are values that should never be changed. but
in my example
<?php
��������$doc�=�new�DomDocument();
��������
��������$root�=�new�DomElement("root");
��������$root->tagName�=�"test";�//�this,�of�course,�doesn't�work...
��������
��������print($root->tagName);
��������$root�=�$doc->appendChild($root);
?>
the constructor (/another class-) function of DomElement has to set the
object variable $root->tagName to "root", of course. this is why tagName
isn't defined as constant...
further you CAN read $root->tagName, but not set it - so it is a real
READONLY variable, define in C-Code of Zend Engine...
anyway, thanks a lot...
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