(PHP 5, PHP 7 >= 5.6.1) Import from a binary string

(PHP 4 >= 4.0.4, PHP 5, PHP 7) Calculate GCD and multipliers

(PHP 4 >= 4.0.4, PHP 5, PHP 7) Perfect square check

(PHP 4 >= 4.0.4, PHP 5, PHP 7) Calculates one's complement

(PHP 4 >= 4.0.4, PHP 5, PHP 7) Bitwise XOR

(PHP 4 >= 4.0.4, PHP 5, PHP 7) Population count

(PHP 4 >= 4.0.4, PHP 5, PHP 7) Bitwise AND

(PHP 4 >= 4.0.4, PHP 5, PHP 7) Subtract numbers