(PECL stats >= 1.0.0)
stats_rand_gen_ibinomial_negative — Generates a single random deviate from a negative binomial distribution. Arguments : n - the number of trials in the negative binomial distribution from which a random deviate is to be generated (n > 0), p - the probability of an event (0 < p < 1)).
$n
, float $p
)本函数还未编写文档，仅有参数列表。
n
p