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do_action( 'pre-html-upload-ui' )

Fires before the upload button in the media upload interface.

Source

File: wp-admin/includes/media.php

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Used By

Used By Description
wp-admin/includes/media.php: media_upload_form()

Outputs the legacy media upload form.

Changelog

Version Description
2.6.0 Introduced.

© 2003–2019 WordPress Foundation
Licensed under the GNU GPLv2+ License.
https://developer.wordpress.org/reference/hooks/pre-html-upload-ui