[wp-trac] [WordPress Trac] #48955: WP 5.3.1 changes cause potential backwards compatibility breakage with kses

[WordPress Trac]

#48955: WP 5.3.1 changes cause potential backwards compatibility breakage with kses
--------------------------+---------------------
 Reporter:  iCaleb        |       Owner:  (none)
     Type:  defect (bug)  |      Status:  new
 Priority:  normal        |   Milestone:  5.3.2
Component:  Security      |     Version:  5.3.1
 Severity:  normal        |  Resolution:
 Keywords:  needs-patch   |     Focuses:
--------------------------+---------------------

Comment (by iCaleb):

 Sites will be generating PHP warnings when an array is passed in now. So
 that is, in a way, a warning for plugin authors. Example:

 > Warning: preg_match() expects parameter 2 to be string, array given in
 /wp-includes/class-wp-block-parser.php on line 417

 > Warning: strlen() expects parameter 1 to be string, array given in /wp-
 includes/class-wp-block-parser.php on line 489

 As for examples, here are two:

 - https://github.com/wpninjas/ninja-
 forms/blob/83cccc6815c98a7ef50ca62704b2661eb53dd3cc/includes/MergeTags/Other.php#L54
 - https://github.com/sugarcalendar/lite/blob/master/sugar-event-
 calendar/includes/admin/list-tables/class-wp-list-table-base.php#L1667

-- 
Ticket URL: <https://core.trac.wordpress.org/ticket/48955#comment:15>
WordPress Trac <https://core.trac.wordpress.org/>
WordPress publishing platform