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phprandommersenne-twister

Does array_rand use the Mersenne Twister algorithm?

In PHP, we have the choice of mt_rand() and rand() where mt_rand() uses the Mersenne Twister algorithm and rand() uses the libc random generator.

I would like to choose a random item out of an array using array_rand. However, does array_rand use the Mersenne Twister algorithm?

It is quite simple to implement my own array_rand using mt_rand, but if array_rand uses the Mersenne Twister, then all the better.

Solution

  • It appears that array_rand uses php_rand() internally, which appears to be the good old non-mt version.