From: [EMAIL PROTECTED]
Operating system: Solaris 7
PHP version: 4.0.4
PHP Bug Type: Math related
Bug description: rand() or getrandmax() is broken
I'm in the middle of porting a php-3.0.16 website to php-4.0.4, and have
run into a minor snafu. There seems to be a difference between what rand() can use,
and what getrandmax() reports. The difference seems to lie in one
function using RAND_MAX and the other using PHP_RAND_MAX.
In php_rand.h the #if HAVE_LRAND48 is satisfied, therefore PHP_RAND_MAX gets set to
2147483647, instead of the system default of
32767 set in /usr/include/stdlib.h. I notice in php-3.0.16 the PHP_RAND_MAX value of
2147483647 is the one that gets used across the board. Would it cause instability to
substitute PHP_RAND_MAX for RAND_MAX on line 246 of ext/standard/rand.c?
Details:
When I do:
$randnum = rand(1,99999);
It produces the following result:
<b>Warning</b>: rand(): Invalid range: 1..99999 in
<b>/WWW/www.space.com/docs/header.php3</b> on line <b>537</b><br>
A call to getrandmax(); produces the result of 2147483647
line 246 of ext/standard/rand.c uses RAND_MAX
}else if ((*p_max)->value.lval-(*p_min)->value.lval > RA
ND_MAX){
line 346 of ext/standard/rand.c uses PHP_RAND_MAX
return_value->value.lval = PHP_RAND_MAX;
Thanks,
Dave
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Edit Bug report at: http://bugs.php.net/?id=8646&edit=1
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