srand

Definition and usage

srand() function sows the random number generator seed.

Example

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

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

Try it yourself

grammar

 srand ( seed )

illustrate

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.