stats_rand_gen_ipoisson
(PECL)
stats_rand_gen_ipoisson -- Generates a single random deviate from a Poisson distribution with mean "mu" (mu >= 0.0).
说明
int
stats_rand_gen_ipoisson ( float mu )
返回值
What the function returns, first on success, then on failure. See
also the &return.success; entity