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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 |
|---|---|
| 483 | if ( $delete ) { |
| 484 | /** |
| 485 | * Fires once a post revision has been deleted. |
| 486 | * |
| 487 | * @since 2.6.0 |
| 488 | * |
| 489 | * @param int $revision_id Post revision ID. |
| 490 | * @param WP_Post $revision Post revision object. |
| 491 | */ |
| 492 | do_action( 'wp_delete_post_revision', $revision->ID, $revision ); |
| 493 | } |
| 494 | |
| 495 | return $delete; |
| 496 | } |
| 497 | |
| 498 | /** |
| 499 | * Returns all revisions of specified post. |
| 500 | * |
| 501 | * @since 2.6.0 |