[wp-trac] [WordPress Trac] #44416: `compact()` will throw notice for undefined variables in PHP 7.3

[WordPress Trac]

#44416: `compact()` will throw notice for undefined variables in PHP 7.3
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 Reporter:  desrosj          |       Owner:  SergeyBiryukov
     Type:  defect (bug)     |      Status:  reopened
 Priority:  normal           |   Milestone:  5.0
Component:  General          |     Version:
 Severity:  normal           |  Resolution:
 Keywords:  php73 fixed-5.0  |     Focuses:
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Comment (by conner_bw):

 While you were java-scripting...

 http://php.net/downloads.php#v7.3.0

 > As these are just notices, let's leave them for 5.0.1.

 The notices break unit tests, continuous integration workflows, hence the
 whole point of (me) tracking this ticket.

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Ticket URL: <https://core.trac.wordpress.org/ticket/44416#comment:24>
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