[wp-trac] [WordPress Trac] #63221: Deprecated Warning in wp_parse_list() When Passing Null Value

[WordPress Trac]

#63221: Deprecated Warning in wp_parse_list() When Passing Null Value
-------------------------------+-----------------------------
 Reporter:  dilipbheda         |      Owner:  (none)
     Type:  defect (bug)       |     Status:  new
 Priority:  normal             |  Milestone:  Awaiting Review
Component:  General            |    Version:
 Severity:  normal             |   Keywords:  has-patch
  Focuses:  php-compatibility  |
-------------------------------+-----------------------------
 When calling `wp_parse_list( get_option( 'custom_theme_settings', null )
 )`, a deprecated warning appears in PHP 8.1+ due to passing `null` to
 `preg_split()`.


 {{{
 Deprecated: preg_split(): Passing null to parameter #2 ($subject) of type
 string is deprecated
 in /var/www/html/codeinwp/wp-includes/functions.php on line 4967
 }}}


 **Steps to Reproduce:**
 1. Call `get_option( 'custom_theme_settings', null )` where the option
 does not exist.
 2. Pass the result to `wp_parse_list()`
 3. Observe the deprecated warning in PHP 8.1+

-- 
Ticket URL: <https://core.trac.wordpress.org/ticket/63221>
WordPress Trac <https://core.trac.wordpress.org/>
WordPress publishing platform