[wp-trac] [WordPress Trac] #56709: Encountered a problem that no one has ever met Please help me

[WordPress Trac]

#56709: Encountered a problem that no one has ever met Please help me
--------------------------+------------------------------
 Reporter:  qq2094629698  |       Owner:  (none)
     Type:  defect (bug)  |      Status:  new
 Priority:  normal        |   Milestone:  Awaiting Review
Component:  Formatting    |     Version:
 Severity:  normal        |  Resolution:
 Keywords:  dev-feedback  |     Focuses:
--------------------------+------------------------------
Changes (by davidbaumwald):

 * focuses:  ui, accessibility, javascript, coding-standards =>
 * component:  Bootstrap/Load => Formatting
 * version:  6.0.2 =>
 * keywords:   => dev-feedback
 * severity:  major => normal


Old description:

> As usual, I used the element to update the page. After clicking the
> update button, I clicked the update button for a few more times, and this
> problem occurred. The contents of my page were all gone, leaving only one
> line of errors, (Warning: count(): Parameter must be an array or an
> object that implements Countable in/www/wwwroot/www.xxxx.com/wp-
> includes/formatting php on line 3415
>
> ）And the same is true for publishing new pages. Please help me, thank
> you!
>
> I used to update the page several times every month. It used to be
> normal, but the problem didn't appear until today

New description:

 As usual, I used the element to update the page. After clicking the update
 button, I clicked the update button for a few more times, and this problem
 occurred. The contents of my page were all gone, leaving only one line of
 errors, (`Warning: count(): Parameter must be an array or an object that
 implements Countable in/www/wwwroot/www.xxxx.com/wp-
 includes/formatting.php on line 3415`）And the same is true for publishing
 new pages. Please help me, thank you!

 I used to update the page several times every month. It used to be normal,
 but the problem didn't appear until today

--

Comment:

 Hi @qq2094629698 and welcome to WordPress Trac!  I did a search for this
 specific report, and I cannot find one that matches up exactly.  So, thank
 you for reporting this!  I am updating the ticket details for better
 discoverability for other contributors and users who may experience the
 same issue.

 Tracing this in the 6.0 branch, this seems to point to
 https://core.trac.wordpress.org/browser/branches/6.0/src/wp-
 includes/formatting.php#L3415 which does implement `count` on a variable
 that could indeed be `false`.

 Paging @jrf to see if this should be treated any differently than other
 type validation fixes(e.g. #54827) or attempt to track down at the source
 of where `convert_smilies` is being called.

 If this requires a similar solution to #54827, we can also tag this with
 `good-first-bug` and `needs-patch`.

-- 
Ticket URL: <https://core.trac.wordpress.org/ticket/56709#comment:1>
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