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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 |
|---|---|
| 2755 | } |
| 2756 | $lastpostdate = get_lastpostdate($timezone); |
| 2757 | if ( $lastpostdate > $lastpostmodified ) { |
| 2758 | $lastpostmodified = $lastpostdate; |
| 2759 | } |
| 2760 | $cache_lastpostmodified[$blog_id][$timezone] = $lastpostmodified; |
| 2761 | } else { |
| 2762 | $lastpostmodified = $cache_lastpostmodified[$blog_id][$timezone]; |
| 2763 | } |
| 2764 | return apply_filters( 'get_lastpostmodified', $lastpostmodified, $timezone ); |
| 2765 | } |
| 2766 | |
| 2767 | /** |
| 2768 | * update_post_cache() - Updates posts in cache |
| 2769 | * |
| 2770 | * @usedby update_page_cache() update_page_cache() aliased by this function. |
| 2771 | * |
| 2772 | * @package WordPress |
| 2773 | * @subpackage Cache |