Title: Errors After PHP 8.1 upgrade Last modified: February 21, 2023 --- # Errors After PHP 8.1 upgrade * [mmken](https://wordpress.org/support/users/mmken/) * (@mmken) * [3 years, 3 months ago](https://wordpress.org/support/topic/errors-after-php-8-1-upgrade/) * Our PHP 8.1 upgrade fails, with the errors listed below. The support forum suggests changes to wp-members/includes/class-wp-members-user.php to address similar problems, but the referenced code does not exist in that file. * Advice? * Warning: Undefined array key “HTTP_X_FORWARDED_PROTO” in /homepages/11/d690513201/ htdocs/wp-config.php on line 86 * Fatal error: Uncaught TypeError: hash_equals(): Argument #1 ($known_string) must be of type string, null given in /homepages/11/d690513201/htdocs/wp-includes/ pluggable.php:2540 Stack trace: #0 /homepages/11/d690513201/htdocs/wp-includes/ pluggable.php(2540): hash_equals(NULL, ‘c4a4cfdd692ea1a…’) #1 /homepages/11/d690513201/ htdocs/wp-content/plugins/wp-members-security/includes/class-wp-members-security. php(742): wp_check_password(‘February2@22’, NULL, NULL) #2 /homepages/11/d690513201/ htdocs/wp-includes/class-wp-hook.php(310): WP_Members_Security->password_flag_login(‘/’)# 3 /homepages/11/d690513201/htdocs/wp-includes/plugin.php(205): WP_Hook->apply_filters(‘/’, Array) #4 /homepages/11/d690513201/htdocs/wp-content/plugins/wp-members/includes/ class-wp-members-user.php(126): apply_filters(‘wpmem_login_red…’, ‘/’, 2179) # 5 /homepages/11/d690513201/htdocs/wp-content/plugins/wp-members/includes/class- wp-members.php(755): WP_Members_User->login() #6 /homepages/11/d690513201/htdocs/ wp-content/plugins/wp-members/includes/class-wp-members.php(731): WP_Members- >get_regchk(‘login’) #7 /homepages/11/d690513201/htdocs/wp-includes/class-wp- hook.php(308): WP_Members->get_action(”) #8 /homepages/11/d690513201/htdocs/wp- includes/class-wp-hook.php(332): WP_Hook->apply_filters(false, Array) #9 /homepages/ 11/d690513201/htdocs/wp-includes/plugin.php(517): WP_Hook->do_action(Array) # 10 /homepages/11/d690513201/htdocs/wp-includes/template-loader.php(13): do_action(‘ template_redire…’) #11 /homepages/11/d690513201/htdocs/wp-blog-header.php(19): require_once(‘/homepages/11/d…’) #12 /homepages/11/d690513201/htdocs/index.php( 17): require(‘/homepages/11/d…’) #13 {main} thrown in /homepages/11/d690513201/ htdocs/wp-includes/pluggable.php on line 2540 Viewing 1 replies (of 1 total) * Plugin Author [Chad Butler](https://wordpress.org/support/users/cbutlerjr/) * (@cbutlerjr) * [3 years, 3 months ago](https://wordpress.org/support/topic/errors-after-php-8-1-upgrade/#post-16499278) * > The support forum suggests changes to wp-members/includes/class-wp-members- > user.php to address similar problems, but the referenced code does not exist > in that file. * To be clear, the ONLY time I recommend any changes to any file is to immediately patch a specific problem that will be addressed with the exact same change in the next plugin update. * The issue you’ve noted has to do with the password change and integration with the WP-Members Security premium extension. * That may be a version issue, or it might be something new that hasn’t been reported( and there is a pending update of WP-Members Security with an improvement to the password reset when the password generator is used – and that could be related here). Regardless of the issue, this wordpress.org forum is only for core WP- Members issues. Premium extension support needs to be handled here: [https://rocketgeek.com/contact/extension-support/](https://rocketgeek.com/contact/extension-support/) Viewing 1 replies (of 1 total) The topic ‘Errors After PHP 8.1 upgrade’ is closed to new replies. * ![](https://ps.w.org/wp-members/assets/icon-256x256.png?rev=1226414) * [WP-Members Membership Plugin](https://wordpress.org/plugins/wp-members/) * [Frequently Asked Questions](https://wordpress.org/plugins/wp-members/#faq) * [Support Threads](https://wordpress.org/support/plugin/wp-members/) * [Active Topics](https://wordpress.org/support/plugin/wp-members/active/) * [Unresolved Topics](https://wordpress.org/support/plugin/wp-members/unresolved/) * [Reviews](https://wordpress.org/support/plugin/wp-members/reviews/) * 1 reply * 2 participants * Last reply from: [Chad Butler](https://wordpress.org/support/users/cbutlerjr/) * Last activity: [3 years, 3 months ago](https://wordpress.org/support/topic/errors-after-php-8-1-upgrade/#post-16499278) * Status: not resolved