[wp-trac] [WordPress Trac] #54005: Get warning error of "Undefined array key 0" after upgrading to PHP 8.0.9

[WordPress Trac]

#54005: Get warning error of "Undefined array key 0" after upgrading to PHP 8.0.9
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 Reporter:  moazzamgodil  |      Owner:  (none)
     Type:  defect (bug)  |     Status:  new
 Priority:  normal        |  Milestone:  Awaiting Review
Component:  Plugins       |    Version:  5.8
 Severity:  critical      |   Keywords:
  Focuses:                |
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 Get warning errors on my plugin after upgrading to PHP 8.0.9. When calling
 the action of admin_notice, its return errors are given below:

 Warning: Undefined array key 0 in C:\xampp\htdocs\wordpress\wp-
 includes\plugin.php on line 947
 Warning: Undefined array key 0 in C:\xampp\htdocs\wordpress\wp-
 includes\plugin.php on line 950"

 How do I fix this error? Thanks

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Ticket URL: <https://core.trac.wordpress.org/ticket/54005>
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