PHP 8.2 Warning preg_replace(): Passing null to parameter #3 ($subject) of type array|string is deprecated nav-menus.php

[ipajen]

Bug Report

Description

When using a theme that use /wp-admin/nav-menus.php following PHP warning is given:

preg_replace(): Passing null to parameter #3 ($subject) of type array|string is deprecated

	
wp-admin/includes/plugin.php:2088
preg_replace()
wp-admin/includes/plugin.php:2088
get_plugin_page_hookname()
wp-admin/includes/plugin.php:2052
get_plugin_page_hook()
wp-admin/includes/plugin.php:1976
get_admin_page_title()
wp-admin/admin-header.php:35

Environment

• WordPress: 6.2-RC3
• PHP: 8.2.0
• Server: Apache/2.4.54 (Win64) OpenSSL/1.1.1p PHP/8.2.0
• Database: mysqli (Server: 10.4.27-MariaDB / Client: mysqlnd 8.2.0)
• Browser: Edge 111.0.1661.44 (Windows 10/11)
• Theme: GeneratePress 3.3.0
• MU-Plugins:
  • WordPress automation by Installatron
• Plugins:
  • Git Updater 12.1.3
  • Plugin Compatibility Checker 1.9
  • Plugin Dependencies 1.7.8
  • Query Monitor 3.12.0
  • Restaurant Menu 2.4.2
  • WordPress Beta Tester 3.3.5

Steps to Reproduce

1. Enable DEBUG
2. Use a theme that use /wp-admin/nav-menus.php and go there.
3. Bug occurs.

Expected Results

1. No PHP warning.

Actual Results

1. PHP warning is shown.

Note:
Ticket at Generatepress theme: ​https://generatepress.com/forums/topic/php-8-1-deprecated-warning-preg_replace/

Tried "Twenty Twenty-Three Version: 1.1" but it gives "with Your theme does not support navigation menus or widgets."

[costdev]

Hi @ipajen, thanks for opening this ticket.

This has been fixed in #57918 and has been milestoned for 6.2.1.