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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 |
|---|---|
| 5461 | |
| 5462 | /** |
| 5463 | * Fires when a post's status is transitioned from private to published. |
| 5464 | * |
| 5465 | * @since 1.5.0 |
| 5466 | * @deprecated 2.3.0 Use 'private_to_publish' instead. |
| 5467 | * |
| 5468 | * @param int $post_id Post ID. |
| 5469 | */ |
| 5470 | do_action('private_to_published', $post->ID); |
| 5471 | } |
| 5472 | |
| 5473 | // If published posts changed clear the lastpostmodified cache |
| 5474 | if ( 'publish' == $new_status || 'publish' == $old_status) { |
| 5475 | foreach ( array( 'server', 'gmt', 'blog' ) as $timezone ) { |
| 5476 | wp_cache_delete( "lastpostmodified:$timezone", 'timeinfo' ); |
| 5477 | wp_cache_delete( "lastpostdate:$timezone", 'timeinfo' ); |
| 5478 | } |
| 5479 | } |