September 2001
Intermediate to advanced
768 pages
32h 45m
English
Content preview from PHP Functions Essential Reference
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mt_rand
int mt_rand(int min, int max)
Generates a random integer using the Mersenne Twister algorithm.
Returns:
Random integer
Description:
Calling this function without any arguments produces a random number between zero and the system’s maximum Mersenne Twister value. The maximum value can be found by calling mt_getrandmax(). Passing both the min and max arguments generates a number within the provided range.
Whereas rand() uses the standard libc rand() function, which can be slow and doesn’t have a set of known characteristics, mt_rand() uses the Mersenne Twister algorithm to generate a random number that’s more suitable for cryptography because of its known characteristics. This function can also be up to four times faster than the standard ...
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