PHP srand() Function

Definition and Usage

The srand() function seeds the random number generator.

Syntax

srand(seed)
Parameter Description
seed Optional. Seed the random number generator with seed.

Description

Starting from PHP 4.2.0 version,seed Optional. Seed the random number generator with seed.

Tips and Notes

Note:From PHP 4.2.0 onwards, srand() or mt_srand() The function seeds the random number generator, which is now automatically completed.

Example

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

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

Output:

23054