gmp_random_seed
(PHP 7, PHP 8)
gmp_random_seed — Sets the RNG seed
Description
Parameters
-
seed -
The seed to be set for the gmp_random(), gmp_random_bits(), and gmp_random_range() functions.
A GMP object, an int or a numeric string.
Return Values
Returns null on success or false on failure.
Errors/Exceptions
Issues an E_WARNING and returns false if
seed is not valid.
Examples
Example #1 gmp_random_seed() example
<?php
// set the seed
gmp_random_seed(100);
var_dump(gmp_strval(gmp_random(1)));
// set the seed to something else
gmp_random_seed(gmp_init(-100));
var_dump(gmp_strval(gmp_random_bits(10)));
// set the seed to something invalid
var_dump(gmp_random_seed('not a number'));
The above example will output:
string(20) "15370156633245019617" string(3) "683" Warning: gmp_random_seed(): Unable to convert variable to GMP - string is not an integer in %s on line %d bool(false)
See Also
- gmp_init() - Create GMP number
- gmp_random() - Random number
- gmp_random_bits() - Random number
- gmp_random_range() - Random number
Here you can write a comment
There are no comments available yet.
