[wp-trac] [WordPress Trac] #32453: add_meta_box callback receives Post Object with ID a String instead of an Integer

[WordPress Trac]

#32453: add_meta_box callback receives Post Object with ID a String instead of an
Integer
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 Reporter:  adiant              |       Owner:
     Type:  defect (bug)        |      Status:  new
 Priority:  normal              |   Milestone:  Awaiting Review
Component:  Options, Meta APIs  |     Version:  4.2.2
 Severity:  minor               |  Resolution:
 Keywords:                      |     Focuses:
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Comment (by dd32):

 Unfortunately this is a compatibility thing - All integers from the
 database are delivered to WordPress as numeric strings, not ints.

 Changing the fields to be ints can unfortunately introduce compatibility
 issues, see #22324 and #22324 for some details on that.

 Worth noting here, that you should always expect a numeric string OR
 integer for post ID's for maximum compatibility.

 For example, with the provided code, on a new-page view you'll see it as
 an int, but on an edit you'll see it as a numeric string.

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Ticket URL: <https://core.trac.wordpress.org/ticket/32453#comment:2>
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