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The best way to understand what a hook does is to look at where it occurs in the source code.
do_action( "hook_name" )apply_filters( "hook_name", "what_to_filter" ).Remember, this hook may occur in more than one file. Moreover, the hook's context may change from version to version.
| Line | Code |
|---|---|
| 365 | * @param array $upload { |
| 366 | * Array of upload data. |
| 367 | * |
| 368 | * @type string $file Filename of the newly-uploaded file. |
| 369 | * @type string $url URL of the uploaded file. |
| 370 | * @type string $type File type. |
| 371 | * } |
| 372 | * @param string $context The type of upload action. Values include 'upload' or 'sideload'. |
| 373 | */ |
| 374 | return apply_filters( 'wp_handle_upload', array( |
| 375 | 'file' => $new_file, |
| 376 | 'url' => $url, |
| 377 | 'type' => $type |
| 378 | ), 'wp_handle_sideload' === $action ? 'sideload' : 'upload' ); } |
| 379 | |
| 380 | /** |
| 381 | * Wrapper for _wp_handle_upload(), passes 'wp_handle_upload' action. |
| 382 | * |
| 383 | * @since 2.0.0 |