Add support for 32bit php

[luchaninov]

composer install

Your requirements could not be resolved to an installable set of packages.

  Problem 1
    - Installation request for savvot/random v0.3.0 -> satisfiable by savvot/random[v0.3.0].
    - savvot/random v0.3.0 requires php-64bit >=5.5.0 -> your PHP version (7.1.27-1+ubuntu16.04.1+deb.sury.org+1) does not satisfy that requirement.

uname -i

i686

getconf LONG_BIT

32

Is it possible to add 32bit PHP support? It is installed at many VDS hosting providers by default.