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(PHP 7, PHP 8)
random_int — Get a cryptographically secure, uniformly selected integer
Generates a uniformly selected integer between the given minimum and maximum.
The randomness generated by this function is suitable for all applications, including the generation of long-term secrets, such as encryption keys.
Las fuentes de aleatoriedad empleadas por esta función son las siguientes:
Nota: Aunque esta función se añadió a PHP en PHP 7.0, hay disponible una » implementación de espacio de usuario para PHP 5.2 hasta 5.6, inclusive.
min
The lowest value to be returned.
max
The highest value to be returned.
A cryptographically secure, uniformly selected integer from the closed interval
[min
, max
]. Both
min
and max
are
possible return values.
max
is less than min
, a
ValueError will be thrown.
Versión | Descripción |
---|---|
8.2.0 | In case of a CSPRNG failure, this function will now throw a Random\RandomException. Previously a plain Exception was thrown. |
Ejemplo #1 random_int() example
<?php
var_dump(random_int(100, 999));
var_dump(random_int(-1000, 0));
?>
El resultado del ejemplo sería algo similar a:
int(248) int(-898)