执行A / B拆分的最理想的跨语言方法是什么？

Question

I'm on a project where I have to implement an A/B split in 15 or so views, in this case for PHP - we'd like to use the same math if possible for our JavaScript projects.

What is the most ideal, least verbose, least CPU-intensive way of doing this? For this project, I just need to set a variable: something like:

// In the main controller
if(rand(1, 2) == 2)
{
    $recipe = 'program';
}
else
{
    $recipe = 'standard';
}
define('RECIPE',$recipe);


// In the view
$program = (RECIPE == 'program') ? '&ProgramOfInterest=' . $program_id : '';

We have 20 or so devs here and we all have our ways - what is the best, benchmark-proven way?

Answer 1

You should use mt_rand() over rand(). It's 4x faster than rand() because mt_rand uses a Mersenne Twister over the libc random number generator which rand() uses (see php.net).

You can then get an equivalent to mt_rand() for javascript from the php.js library.