re-3.5.0) upload interface is loaded.

Used by [ 2 functions ](https://developer.wordpress.org/reference/hooks/pre-upload-ui/#used-by) | Uses [ 0 functions ](https://developer.wordpress.org/reference/hooks/pre-upload-ui/#uses) | Source: [ wp-admin/includes/media.php:2149 ](https://github.com/WordPress/wordpress-develop/blob/6.5/src/wp-admin/includes/media.php#L2149-L2149)

  * hook  [ pre-plupload-upload-ui ](https://developer.wordpress.org/reference/hooks/pre-plupload-upload-ui/)

Fires before the upload interface loads.

Used by [ 2 functions ](https://developer.wordpress.org/reference/hooks/pre-plupload-upload-ui/#used-by) | Uses [ 0 functions ](https://developer.wordpress.org/reference/hooks/pre-plupload-upload-ui/#uses) | Source: [ wp-admin/includes/media.php:2244 ](https://github.com/WordPress/wordpress-develop/blob/6.5/src/wp-admin/includes/media.php#L2244-L2244)

  * hook  [ post-plupload-upload-ui ](https://developer.wordpress.org/reference/hooks/post-plupload-upload-ui/)

Fires after the upload interface loads.

Used by [ 2 functions ](https://developer.wordpress.org/reference/hooks/post-plupload-upload-ui/#used-by) | Uses [ 0 functions ](https://developer.wordpress.org/reference/hooks/post-plupload-upload-ui/#uses) | Source: [ wp-admin/includes/media.php:2261 ](https://github.com/WordPress/wordpress-develop/blob/6.5/src/wp-admin/includes/media.php#L2261-L2261)

  * hook  [ pre-html-upload-ui ](https://developer.wordpress.org/reference/hooks/pre-html-upload-ui/)

Fires before the upload button in the media upload interface.

Used by [ 1 function ](https://developer.wordpress.org/reference/hooks/pre-html-upload-ui/#used-by) | Uses [ 0 functions ](https://developer.wordpress.org/reference/hooks/pre-html-upload-ui/#uses) | Source: [ wp-admin/includes/media.php:2272 ](https://github.com/WordPress/wordpress-develop/blob/6.5/src/wp-admin/includes/media.php#L2272-L2272)

  * hook  [ post-html-upload-ui ](https://developer.wordpress.org/reference/hooks/post-html-upload-ui/)

Fires after the upload button in the media upload interface.

Used by [ 1 function ](https://developer.wordpress.org/reference/hooks/post-html-upload-ui/#used-by) | Uses [ 0 functions ](https://developer.wordpress.org/reference/hooks/post-html-upload-ui/#uses) | Source: [ wp-admin/includes/media.php:2293 ](https://github.com/WordPress/wordpress-develop/blob/6.5/src/wp-admin/includes/media.php#L2293-L2293)

  * function  [ media_sideload_image() ](https://developer.wordpress.org/reference/functions/media_sideload_image/)

Downloads an image from the specified URL, saves it as an attachment, and
optionally attaches it to a post.

Used by [ 0 functions ](https://developer.wordpress.org/reference/functions/media_sideload_image/#used-by) | Uses [ 10 functions ](https://developer.wordpress.org/reference/functions/media_sideload_image/#uses) | Source: [ wp-admin/includes/media.php:1015 ](https://github.com/WordPress/wordpress-develop/blob/6.5/src/wp-admin/includes/media.php#L1015-L1092)

  * function  [ image_add_caption() ](https://developer.wordpress.org/reference/functions/image_add_caption/)

Adds image shortcode with caption to editor.

Used by [ 0 functions ](https://developer.wordpress.org/reference/functions/image_add_caption/#used-by) | Uses [ 1 function ](https://developer.wordpress.org/reference/functions/image_add_caption/#uses) | Source: [ wp-admin/includes/media.php:188 ](https://github.com/WordPress/wordpress-develop/blob/6.5/src/wp-admin/includes/media.php#L188-L250)

  * hook  [ disable_captions ](https://developer.wordpress.org/reference/hooks/disable_captions/)

Filters whether to disable captions.

Used by [ 7 functions ](https://developer.wordpress.org/reference/hooks/disable_captions/#used-by) | Uses [ 0 functions ](https://developer.wordpress.org/reference/hooks/disable_captions/#uses) | Source: [ wp-admin/includes/media.php:216 ](https://github.com/WordPress/wordpress-develop/blob/6.5/src/wp-admin/includes/media.php#L216-L216)

  * hook