MT_SRAND
Seeds the Mersenne Twister Random Number Generator
Note: There is no need to seed the random number generator with mt_srand() as this is done automatically.
SYNTAX
mt_srand ([ int $seed [, int $mode = MT_RAND_MT19937 ]] ) : void
PARAMETERS
seed
An arbitrary integer seed value.
mode
Use one of the following constants to specify the implementation of the algorithm to use.
CONSTANT | DESCRIPTION |
---|---|
MT_RAND_MT19937 | Uses the fixed, correct, Mersenne Twister implementation, available as of PHP 7.1.0. |
MT_RAND_PHP | Uses an incorrect Mersenne Twister implementation which was used as the default up till PHP 7.1.0. This mode is available for backward compatibility. |
RETURN
No value is returned.
EXAMPLES
VOID
1752264018
SEED
451017527
MODE
451017527