gmp_random
(PHP 4 >= 4.0.4, PHP 5, PHP 7)
Random number
Removed-8-0-0
Description
gmp_random(int $limiter = 20): GMP
Generate a random number. The number will be between 0 and (2 ** n) - 1, where n is the number of bits per limb multiplied by limiter. If limiter is negative, negative numbers are generated.
A limb is an internal GMP mechanism. The number of bits in a limb is not static, and can vary from system to system. Generally, the number of bits in a limb is either 32 or 64, but this is not guaranteed.
Cryptographically-insecure
Parameters
limiterThe limiter.
Parameter
Return Values
A random GMP number.
Examples
gmp_random() example
php
<?php
$rand1 = gmp_random(1); // random number from 0 to 1 * bits per limb
$rand2 = gmp_random(2); // random number from 0 to 2 * bits per limb
echo gmp_strval($rand1) . "\n";
echo gmp_strval($rand2) . "\n";
?>The above example will output:
output
1915834968
8642564075890328087