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gmp_random
Random number
(PHP 4 >= 4.0.4, PHP 5)
resource gmp_random ( int limiter )
Generate a random number. The number will be between zero and 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 16 or 32, but this is not guaranteed.
Parameters
- limiter
The limiter.
It can be either a GMP number resource, or a numeric string given that it is possible to convert the latter to a number.
Examples
Example 809. gmp_random() example
<?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:
1915834968
8642564075890328087