PHP 7.2 500 error using session_unregister()

I’m using PHP 7.2 and when trying to register a new user I get a 500 PHP error.

PHP Fatal error: Uncaught Error: Call to undefined function session_unregister() in /-snip-/wp-content/plugins/clean-login/clean-login.php:413

On line 413 there is

session_unregister (‘cleanlogin-captcha’);

According to the PHP manual for session_unregister()

Warning This function has been DEPRECATED as of PHP 5.3.0 and REMOVED as of PHP 5.4.0.

Searching the web it was suggested that

unset($_SESSION[‘cleanlogin-captcha’]);

could be used instead. When I tried this all seemed to work OK but I might not have it correctly.

Hope that is helpful.
Joe

• This topic was modified 6 years, 3 months ago by htjoe38.
• This topic was modified 6 years, 3 months ago by htjoe38.