PHP: rand() function

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

Description

PHP rand() function is used to generate a random integer

Version:

(PHP 4 and above)

Syntax:

rand()

rand(minv, maxv)

Parameters:

Name	Description	Required / Optional	Type
minv	Lowest value to be returned. Default : 0	Optional	Integer
maxv	Highest value to be returned. Default : getrandmax())	Optional	Integer

Note: If the function is called without the minv and maxv arguments rand() returns a pseudo-random value between 0 and getrandmax(). If you want a random number between 15 and 25 (inclusive), for example, use mt_rand(15, 25).

Return value

A pseudo random value between minv and maxv.

Value Type: Integer.

Example:

<?php
$rand1=rand();
$rand2=rand(15,25);
$rand3=rand(-150,300);
echo "Random number without a range : ". $rand1 . "<br />";
echo "Random number between 15 to 25  is " . $rand2 . "<br />";
echo "Random number between -150 to 300  is " . $rand3 . "<br />";
?>

View the example in the browser

See also

PHP Function Reference

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