PHP 8.0.26 Released!

Predefined Constants

The constants below are always available as part of the PHP core.

MT_RAND_MT19937 (integer)
Indicates that the correct » Mt19937 (Mersenne Twister) implementation will be used by the algorithm, when creating a Random\Engine\Mt19937 instance using Random\Engine\Mt19937::__construct() or seeding the global Mersenne Twister with mt_srand().
MT_RAND_PHP (integer)
Indicates that an incorrect Mersenne Twister implementation will be used by the algorithm, when creating a Random\Engine\Mt19937 instance using Random\Engine\Mt19937::__construct() or seeding the global Mersenne Twister with mt_srand(). The incorrect implementation is available for backwards compatibility with mt_srand() prior to PHP 7.1.0.

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