Crate php_mt 

PhpMt

A Rust implementation of PHP’s MT19937-based random number generator.

This implementation is bit-for-bit compatible with PHP 7.1+ for:

• mt_srand(seed)
• mt_rand()
• mt_rand(min, max)

Notes:

• In PHP 7.1+, rand() is an alias of mt_rand().
• In PHP 7.1+, srand(seed) is an alias of mt_srand(seed).
• This implementation matches the Zend Engine MT19937 algorithm.

Implementation details:

• 624-element MT19937 state array
• Exact Zend tempering constants
• mt_rand() returns 31-bit output (next_u32() >> 1)
• mt_rand(min, max) uses integer rejection sampling (no float scaling)

This crate is intended for deterministic cross-language compatibility and reproducible test vectors.

Not cryptographically secure.

Structs

PhpMt