[pmwiki-devel] php logic question

[Hladůvka Jiří]

Programming languages use to have some operators precedence.
Usualy the unary operators are evaluated as the first.
The negation is an unary operator .
After processing both negations the binary operator "or"  takes its turn.
IMO the expressions are equivalent.

See 
http://www.php.net/manual/en/language.operators.php#language.operators.precedence

Regards,
Jiri

Hans napsal(a):
> For logical condition tests, is the following allowed:
>
> if (!$page OR !$permit)
>
> or this:
>
> if ((!$page) OR (!$permit))
>
> or are they equivalent?
>
>   
> thanks!
>  Hans
>
>
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