mt_srand - Sow a better random number generator seed

Name:mt_srand

Category:math

Programming Language:php

One-line Description:Seed Mersenne Twister Random Number Generator.

Definition and usage

mt_srand() seed Mersenne Twister Random Number Generator.

In this example, we will seed the random number generator:

 <?php
mt_srand ( mktime ( ) ) ;
echo ( mt_rand ( ) ) ;
?>

Try it yourself

 mt_srand ( seed )

parameter	describe
seed	Required. Use seed to seed the random number generator.

Starting from PHP version 4.2.0, the seed parameter becomes optional, and when this item is empty, it will be set to any time.

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