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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 |
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740 | /** |
741 | * Filters the date the last post or comment in the query was modified. |
742 | * |
743 | * @since 5.2.0 |
744 | * |
745 | * @param string|false $max_modified_time Date the last post or comment was modified in the query, in UTC. |
746 | * False on failure. |
747 | * @param string $format The date format requested in get_feed_build_date(). |
748 | */ |
749 | return apply_filters( 'get_feed_build_date', $max_modified_time, $format ); |
750 | } |
751 |
|
752 | /** |
753 | * Returns the content type for specified feed type. |
754 | * |
755 | * @since 2.8.0 |
756 | * |
757 | * @param string $type Type of feed. Possible values include 'rss', rss2', 'atom', and 'rdf'. |
758 | * @return string Content type for specified feed type. |