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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 |
|---|---|
| 4394 | * @since 5.4.1 The `$unsanitized_postarr` parameter was added. |
| 4395 | * @since 6.0.0 The `$update` parameter was added. |
| 4396 | * |
| 4397 | * @param array $data An array of slashed, sanitized, and processed attachment post data. |
| 4398 | * @param array $postarr An array of slashed and sanitized attachment post data, but not processed. |
| 4399 | * @param array $unsanitized_postarr An array of slashed yet *unsanitized* and unprocessed attachment post data |
| 4400 | * as originally passed to wp_insert_post(). |
| 4401 | * @param bool $update Whether this is an existing attachment post being updated. |
| 4402 | */ |
| 4403 | $data = apply_filters( 'wp_insert_attachment_data', $data, $postarr, $unsanitized_postarr, $update ); |
| 4404 | } else { |
| 4405 | /** |
| 4406 | * Filters slashed post data just before it is inserted into the database. |
| 4407 | * |
| 4408 | * @since 2.7.0 |
| 4409 | * @since 5.4.1 The `$unsanitized_postarr` parameter was added. |
| 4410 | * @since 6.0.0 The `$update` parameter was added. |
| 4411 | * |
| 4412 | * @param array $data An array of slashed, sanitized, and processed post data. |