[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):

 Front-end uploads? Not common but there are few plugins that use them.

 We can try using `is_user_logged_in()` and change the default `$create_dir
 = false`. That will speed it up a little, not sure how significant.

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Ticket URL: <https://core.trac.wordpress.org/ticket/34359#comment:33>
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