8 ms·

Then make srand = mt_srand.

• gojomo 17y ago
  That doesn't resolve the problem for code relying on stable behavior of these functions. Given the following code... srand(CONSTANT); n = rand(); ...the scenarios I mentioned benefit from n being the exact same number in PHP version X and then version X+1, X+2, etc. If PHP swaps out both rand() and srand(), backward-compatibility is broken, and along with it some kinds of quite-reasonable code that relied on srand() initializing rand() to give the same deterministic stream of numbers (rather than just a deterministic stream). It might still be worth taking that hit -- I don't have a strong opinion -- but there are good reasons not to break backwards-compatibility, even to improve PRNG quality.