gmp_random
(PHP 4 >= 4.0.4)
gmp_random -- Random number
Description
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.
Example 1. 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 printout of the above program might be:
1915834968
8642564075890328087
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