srand - Sow the random number generator seeds

Name:srand

Category:math

Programming Language:php

One-line Description:Sow the random number generator seeds.

Definition and usage

srand() function sows the random number generator seed.

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

 <?php
srand ( mktime ( ) ) ;
echo ( rand ( ) ) ;
?>

Try it yourself

 srand ( seed )

parameter	describe
seed	Optional. Use seed to sow the random number generator seeds.

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.

Similar Functions