Richard Lynch wrote:
>Perhaps something like this:
>
>function my_unset($var){
> global $$var;
> $wasset = isset($$var);
> unset($$var);
> return $wasset;
>}
>
>my_unset(‘a‘); //unset($a);
>
>
>
>Or, in a more general way:
>
>function forcereturn ($php){
> return eval($php);
>}
>
>
>Damned if I understand *why* you want this, mind you. :-)Thank you, Richard. That's what I am looking for.
Your first solution may not be usable, because the variable to unset may not be a global variable. The second solution (that using eval()) may have a bug, because the unset() is called in a local-scope of the function forcereturn() (and so the variable "unset()"ted differs from the variable that we really want to unset()).
However, there can be used eval() instead of forcereturn():
<?php (True==False) or (eval('unset($a);')); ?>Nevertheless, this solution has defects for general use: A lot of
expressions with no return value can't be called with eval() (e.g.
eval('break;') is not a good idea).However I don't say I need to use a break command. All I needed was already said. Thank you.
--Tomas_Tintera
ps. I want it because it seems to be practical to write the whole program in a one expression (usually composed of "AND" and "OR" operators). And it's nice. When reading such a code, you can feel as when reading poetry ;).
-- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
