PHP rand() Function
Example
Generate random numbers:
<?php
echo(rand() . "<br>");
echo(rand() . "<br>");
echo(rand(10,100));
?>
Run example »
Definition and Usage
The rand() function generates a random integer.
Tip: If you want a random integer between 10 and 100 (inclusive), use rand (10,100).
Tip: The mt_rand() function produces a better random value, and is 4 times faster than rand().
Syntax
rand();
or
rand(min,max);
| Parameter | Description |
|---|---|
| min | Optional. Specifies the lowest number to be returned. Default is 0 |
| max | Optional. Specifies the highest number to be returned. Default is getrandmax() |
Technical Details
| Return Value: | A random integer between min (or 0) and max (or getrandmax() inclusive) |
|---|---|
| Return Type: | Integer |
| PHP Version: | 4+ |
| PHP Changelog: | PHP 4.2.0: Random number generator is seeded automatically |
PHP Math Reference
