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Math function Library: Mt_rand

Source: Internet
Author: User
Keywords mt_rand php Chinese function Handbook math function library
Tags aliyun function function library get html http php php chinese function handbook
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Mt_rand

(PHP3 >= 3.0.6, PHP4)

Mt_rand---&http://www.aliyun.com/zixun/aggregation/37954.html ">nbsp; Get the number of chaos

Syntax: int mt_rand ([int min [, int max]]);

Description:

Many old libc have ambiguous or unknown characteristics and are slow to use, and this function replaces libc Chaos Generator with a race rotation (Mersenne twister) that is faster than four times times faster.

If there is no parameter min and max This function returns a value that is Rand_max between 0 and two, for example, if you want to mt_rand between 5 and 15, you can enter a value in this function (5,15). In order to make the chaotic number of chaos maximum, the best use of Mt_srand () to set the number of random seeds before the chaos.

Reference: Mt_srand () Mt_getrandmax () Srand () rand () Getrandmax ()

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