[wp-trac] [WordPress Trac] #45018: Non-string needle parameters throw warning in PHP 7.3

[WordPress Trac]

#45018: Non-string needle parameters throw warning in PHP 7.3
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 Reporter:  desrosj                        |       Owner:  (none)
     Type:  defect (bug)                   |      Status:  new
 Priority:  normal                         |   Milestone:  5.0
Component:  General                        |     Version:
 Severity:  normal                         |  Resolution:
 Keywords:  php73 has-patch needs-testing  |     Focuses:
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Comment (by pento):

 @desrosj, @jorbin: Why is the new test in [attachment:"45018.diff"] is set
 to fail? The same failure occurs if I run that test with the changes to
 `src/wp-includes/nav-menu.php` reverted.

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Ticket URL: <https://core.trac.wordpress.org/ticket/45018#comment:6>
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