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gmp_scan0> <gmp_prob_prime
[edit] Last updated: Sat, 07 Jan 2012

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gmp_random

(PHP 4 >= 4.0.4, PHP 5)

gmp_randomRandom number

Beschreibung

resource gmp_random ([ int $limiter = 20 ] )

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.

Parameter-Liste

limiter

The limiter.

Dies kann entweder eine resource für einen GMP-Wert sein oder ein numerischer String, wenn es möglich ist, diesen in einen GMP-Wert umzuwandeln.

Rückgabewerte

A random GMP number.

Beispiele

Beispiel #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";
?>

Das oben gezeigte Beispiel erzeugt folgende Ausgabe:

1915834968
8642564075890328087



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