RAND_MAX

[yawnmoth]

According to php.net, mt_rand() and rand()'s$max value is, by default,
RAND_MAX. This suggests to me that RAND_MAX is a constant, however,
the following PHP script shows this not to be the case:

<?php
echo defined('RAND_M AX') ? 'defined' : 'not defined';
?>

Any ideas as to why this is?

[Michael Fesser]

Re: RAND_MAX

..oO(yawnmoth)

>According to php.net, mt_rand() and rand()'s$max value is, by default,
>RAND_MAX. This suggests to me that RAND_MAX is a constant, however,
>the following PHP script shows this not to be the case:
>
><?php
>echo defined('RAND_M AX') ? 'defined' : 'not defined';
>?>
>
>Any ideas as to why this is?

Just because something is written in caps in the manual doesn't
necessarily mean that it's a PHP constant. It could also be a system-
dependent constant in the C source code.

Micha

[gosha bine]

Re: RAND_MAX

yawnmoth wrote:

According to php.net, mt_rand() and rand()'s$max value is, by default,
RAND_MAX. This suggests to me that RAND_MAX is a constant, however,
the following PHP script shows this not to be the case:
>
<?php
echo defined('RAND_M AX') ? 'defined' : 'not defined';
?>
>
Any ideas as to why this is?
>

RAND_MAX is not a php constant, it's defined in the standard C library
and is platform dependent. For example, on windows it's only 32767.



--
gosha bine

extended php parser ~ http://code.google.com/p/pihipi
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