gmp_prob_primegmp_random
(PHP 4 >= 4.0.4, PHP 5)
gmp_random — Random number
Descrierea
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.
Parametri
-
limiter -
The limiter.
Aceasta poate fi sau o resursă număr GMP, sau un șir de caractere numeric, dacă este posibilă convertirea acestuia într-un număr.
Valorile întoarse
A random GMP number.
Exemple
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";
?>
Exemplul de mai sus va afișa:
1915834968 8642564075890328087
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