media_handle_upload()

参数

$file_id

(string)
(Required)
Index of the $_FILES array that the file was sent. Required.

$post_id

(int)
(Required)
The post ID of a post to attach the media item to. Required, but can be set to 0, creating a media item that has no relationship to a post.

$post_data

(array)
(Optional)
Overwrite some of the attachment. Optional.

Default value: array()

$overrides

(array)
(Optional)
Override the wp_handle_upload() behavior. Optional.

Default value: array('test_form' => false)