I have password_verify working fine on my main site. However, on my subdomain, the exact same code is causing the following error:
The subdomain.example.com page isn’t working
subdomain.example.com is currently unable to handle this request.
This is my code for verifying the password, password_verify($password, $hash).
password_verify was only introduced with PHP 5.5 - if your subdomain site is running on a lower version than that, you'll need to use a forwards-compatibility library such as https://github.com/ircmaxell/password_compat