Feb 14

PHP 7.4.2, the most current version, was released on the 23rd January 2020.

A bug in this version of PHP breaks WordPress authentication for usernames with spaces. That is, if a user attempts to log into their account via the WordPress login page, it will just display the login form again. It makes no difference if the user enters their username or their email address.

The immediate workaround is to downgrade to PHP 7.4.1 and then upgrade to PHP 7.4.3 once it has been released.

For more information, see:

css.php