[wp-trac] [WordPress Trac] #50913: PHP 8.0: various compatibility fixes

[WordPress Trac]

#50913: PHP 8.0: various compatibility fixes
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 Reporter:  jrf                            |       Owner:  SergeyBiryukov
     Type:  task (blessed)                 |      Status:  reviewing
 Priority:  normal                         |   Milestone:  5.6
Component:  General                        |     Version:
 Severity:  normal                         |  Resolution:
 Keywords:  php8 has-patch needs-dev-note  |     Focuses:  coding-standards
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Comment (by SergeyBiryukov):

 In [changeset:"49163" 49163]:
 {{{
 #!CommitTicketReference repository="" revision="49163"
 Bootstrap/Load: Don't assume `WP_CONTENT_DIR` is defined.

 When the `mysql` extention isn't loaded and a custom db dropin is not in
 place, we give folks a nice error. However, we can't assume that the
 `WP_CONTENT_DIR` constant is set yet since this runs before we define
 default constants.

 This fixes a PHP 8 error.

 Props jorbin.
 Merges [49161] to trunk.
 See #50913.
 }}}

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Ticket URL: <https://core.trac.wordpress.org/ticket/50913#comment:72>
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