PHP mt_srand() Function
Definition and Usage
mt_srand() seeds the Mersenne Twister random number generator.
Syntax
mt_srand(seed)
| Parameter | Description |
|---|---|
| seed | Required. Use seed to seed the random number generator. |
Description
Starting from PHP 4.2.0 version,seed The parameter becomes optional. When this item is empty, it will be set to the current time.
Tips and Comments
Note:Since PHP 4.2.0, there is no longer a need to use srand() Or mt_srand() function to seed the random number generator, now it is automatically completed.
Example
In this example, we will seed the random number generator:
<?php mt_srand(mktime()); echo(mt_rand()); ?>
Output like:
1132656473
