[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):

 In [changeset:"43899" 43899]:
 {{{
 #!CommitTicketReference repository="" revision="43899"
 Nav Menus: Fix a PHP 7.3 error when switching themes.

 When switching themes, `wp_map_nav_menu_locations()` is used to ensure nav
 menus are placed in the relevant menu location. Occasionally, menus are
 registered to locations with numeric slugs, rather than strings.
 `wp_map_nav_menu_locations()` assumed it would be the latter, and ran
 `stripos()` on those numeric slugs. This behaviour is deprecated in PHP
 7.3.

 As this is the last known PHP 7.3 incompatibility, this commit also
 removes PHP 7.3 from Travis' `allowed_failures` list.

 Props desrosj, jorbin.
 See #45018.
 }}}

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Ticket URL: <https://core.trac.wordpress.org/ticket/45018#comment:9>
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