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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 |
|