[wp-trac] [WordPress Trac] #34359: Cache output of `wp_upload_dir()` to improve performance

[WordPress Trac]

#34359: Cache output of `wp_upload_dir()` to improve performance
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 Reporter:  mikeschroder                   |       Owner:  mikeschroder
     Type:  defect (bug)                   |      Status:  assigned
 Priority:  normal                         |   Milestone:  4.5
Component:  Media                          |     Version:
 Severity:  normal                         |  Resolution:
 Keywords:  needs-testing has-patch early  |     Focuses:  multisite,
                                           |  performance
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Comment (by azaozz):

 Replying to [comment:37 mikeschroder]:
 > Would contact/support forms be affected by that, for things like
 attaching documents? (also perhaps anonymous image/video uploads, although
 probably less frequently)

 Right, it is safer to always check/create the uploads dir, even when the
 user is not logged in.

 In this case 34359.4.patch is ready to go. After that we can change all
 calls to `wp_upload_dir()` that are not in uploading context to use
 `wp_get_upload_dir()`.

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Ticket URL: <https://core.trac.wordpress.org/ticket/34359#comment:40>
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