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


            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.

No value is returned.

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1453407989