[wp-trac] [WordPress Trac] #61895: null passed to `wp-includes/pomo/po.php` in certain instances when using GlotPress 4.0.1

[WordPress Trac]

#61895: null passed to `wp-includes/pomo/po.php` in certain instances when using
GlotPress 4.0.1
--------------------------+-----------------------------------------
 Reporter:  afragen       |      Owner:  (none)
     Type:  defect (bug)  |     Status:  new
 Priority:  normal        |  Milestone:  Awaiting Review
Component:  I18N          |    Version:  trunk
 Severity:  normal        |   Keywords:  has-patch dev-feedback php8
  Focuses:                |
--------------------------+-----------------------------------------
 I have a GlotPress installation running WP 6.6.1 and GlotPress 4.0.1. When
 I look at my debug log it is littered with the following errors.


 {{{
 PHP Deprecated: substr(): Passing null to parameter #1 ($string) of type
 string is deprecated in /sites/xxx/files/wp-includes/pomo/po.php on line
 270
 PHP Deprecated: substr(): Passing null to parameter #1 ($string) of type
 string is deprecated in /sites/xxx/files/wp-includes/pomo/po.php on line
 271
 PHP Deprecated: str_replace(): Passing null to parameter #3 ($subject) of
 type array|string is deprecated in /sites/xxx/files/wp-
 includes/pomo/po.php on line 127
 }}}

 It is clear that something is passing `null` into these specific lines. I
 have added some modified error checking and a cast to alleviate these
 issues.

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Ticket URL: <https://core.trac.wordpress.org/ticket/61895>
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