Description:
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Unless the PHP documentation is not up-to-date, the only seed option for the Mersenne Twister RNG is a 32-bit integer. The original (updated) MT implementation (see http://www.math.sci.hiroshima-u.ac.jp/~m-mat/MT/MT2002/emt19937ar.html), however, allows for seed arrays of arbitrary length to better exploit the large period of the RNG. It would be nice if this option were built in in future versions of PHP so that I myself and probably quite a few other PHP users won't have to implement the RNG in PHP code itself or create a private extension in C++. Adding this feature to PHP should not require a lot of effort as other implementations are readily available.