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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 |
|---|---|
| 1694 | } |
| 1695 | $lastpostdate = get_lastpostdate($timezone); |
| 1696 | if ( $lastpostdate > $lastpostmodified ) { |
| 1697 | $lastpostmodified = $lastpostdate; |
| 1698 | } |
| 1699 | $cache_lastpostmodified[$blog_id][$timezone] = $lastpostmodified; |
| 1700 | } else { |
| 1701 | $lastpostmodified = $cache_lastpostmodified[$blog_id][$timezone]; |
| 1702 | } |
| 1703 | return apply_filters( 'get_lastpostmodified', $lastpostmodified ); |
| 1704 | } |
| 1705 | |
| 1706 | // |
| 1707 | // Cache |
| 1708 | // |
| 1709 | |
| 1710 | function update_post_cache(&$posts) { |
| 1711 | global $post_cache, $blog_id; |
| 1712 | |