RAND_MAX         1256 ext/mcrypt/mcrypt.c 			iv[--size] = 255.0 * php_rand(TSRMLS_C) / RAND_MAX;
RAND_MAX           32 ext/standard/php_rand.h #ifndef RAND_MAX
RAND_MAX           40 ext/standard/php_rand.h #define PHP_RAND_MAX RAND_MAX