PHP: srand() function

Last update on August 19 2022 21:50:39 (UTC/GMT +8 hours)

Description

The srand() function seed the random number generator.

Version:

(PHP 4 and above)

Syntax:

srand(num)

Parameter:

Name	Description	Required / Optional	Type
num	Seed value. If omitted, a random value is used.	Optional	Integer

Return value:

No value is returned.

Example:

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

See also

PHP Function Reference

Previous: sqrt
Next: tan