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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 |
|---|---|
| 3403 | function wp_delete_post_revision( $revision_id ) { |
| 3404 | if ( !$revision = wp_get_post_revision( $revision_id ) ) |
| 3405 | return $revision; |
| 3406 | |
| 3407 | $delete = wp_delete_post( $revision->ID ); |
| 3408 | if ( is_wp_error( $delete ) ) |
| 3409 | return $delete; |
| 3410 | |
| 3411 | if ( $delete ) |
| 3412 | do_action( 'wp_delete_post_revision', $revision->ID, $revision ); |
| 3413 | |
| 3414 | return $delete; |
| 3415 | } |
| 3416 | |
| 3417 | /** |
| 3418 | * wp_get_post_revisions() - Returns all revisions of specified post |
| 3419 | * |
| 3420 | * @package WordPress |
| 3421 | * @subpackage Post Revisions |