Description
Parameters
-
seed -
The seed to be set for the gmp_random(), gmp_random_bits(), and gmp_random_range() functions.
Either a GMP number resource in PHP 5.5 and earlier, a GMP object in PHP 5.6 and later, or a numeric string provided that it is possible to convert the latter to a number.
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
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Document created the 30/01/2003, last modified the 26/10/2018
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References
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