[wp-trac] [WordPress Trac] #63330: PHP deprecated error in meta.php on line 1298

[WordPress Trac]

#63330: PHP deprecated error in meta.php on line 1298
--------------------------+-----------------------------
 Reporter:  Klemart3D     |      Owner:  (none)
     Type:  defect (bug)  |     Status:  new
 Priority:  normal        |  Milestone:  Awaiting Review
Component:  Users         |    Version:  6.8
 Severity:  normal        |   Keywords:
  Focuses:                |
--------------------------+-----------------------------
 Hi,

 Is there a way to check if $meta_key isn't null at
 [https://github.com/WordPress/WordPress/blob/master/wp-
 includes/meta.php#L1298 line 1298 of WP 6.8], to prevent to following php
 error:

 [18-Apr-2025 14:43:12 UTC] PHP Deprecated:  preg_replace(): Passing null
 to parameter #3 ($subject) of type array|string is deprecated in
 /home/website/www/wp-includes/meta.php on line 1298
 [18-Apr-2025 14:43:12 UTC] PHP Fatal error:  Uncaught TypeError:
 array_filter(): Argument #1 ($array) must be of type array, null given in
 /home/website/www/wp-includes/class-wp-user-query.php:486
 Stack trace:
 #0 /home/website/www/wp-includes/class-wp-user-query.php(486):
 array_filter(NULL)
 #1 /home/website/www/wp-includes/class-wp-user-query.php(79):
 WP_User_Query->prepare_query(Array)
 #2 /home/website/www/wp-includes/user.php(807):
 WP_User_Query->__construct(Array)
 #3 /home/website/www/wp-includes/user.php(1715): get_users(Array)
 #4 /home/website/www/wp-admin/includes/meta-boxes.php(970):
 wp_dropdown_users(Array)
 #5 /home/website/www/wp-admin/includes/template.php(1456):
 post_author_meta_box(Object(WP_Post), Array)
 #6 /home/website/www/wp-admin/edit-form-advanced.php(722):
 do_meta_boxes(Object(WP_Screen), 'normal', Object(WP_Post))
 #7 /home/website/www/wp-admin/post.php(206): require('/home/website...')
 #8 {main} thrown in /home/website/www/wp-includes/class-wp-user-query.php
 on line 486

 PHP version: 8.3.9

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Ticket URL: <https://core.trac.wordpress.org/ticket/63330>
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