[wp-trac] [WordPress Trac] #42860: PHP 7.2 warning - Parameter must be an array or an object that implements Countable in /wp-includes/class-wp-query.php on line 3035

[WordPress Trac]

#42860: PHP 7.2 warning - Parameter must be an array or an object that implements
Countable in /wp-includes/class-wp-query.php on line 3035
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 Reporter:  lisota             |       Owner:
     Type:  defect (bug)       |      Status:  new
 Priority:  normal             |   Milestone:  4.9.2
Component:  Query              |     Version:  4.9.1
 Severity:  normal             |  Resolution:
 Keywords:  reporter-feedback  |     Focuses:
-------------------------------+--------------------

Comment (by ayeshrajans):

 It looks like the `$this->posts` variable was left default `null`, causing
 the warning when called with `count()`.
 Attached a patch that might solve it, but we should really be waiting for
 the reporter's information. A backtrace can explain a lot.

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Ticket URL: <https://core.trac.wordpress.org/ticket/42860#comment:4>
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