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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 |
|---|---|
| 93 | * @package WordPress |
| 94 | * @subpackage Feed |
| 95 | * @since 2.2.0 |
| 96 | * @uses apply_filters() Calls 'wp_title_rss' on the blog title. |
| 97 | * @see wp_title() $sep parameter usage. |
| 98 | * |
| 99 | * @param string $sep Optional. |
| 100 | */ |
| 101 | function wp_title_rss($sep = '»') { |
| 102 | echo apply_filters('wp_title_rss', get_wp_title_rss($sep)); |
| 103 | } |
| 104 | |
| 105 | /** |
| 106 | * Retrieve the current post title for the feed. |
| 107 | * |
| 108 | * @package WordPress |
| 109 | * @subpackage Feed |
| 110 | * @since 2.0.0 |
| 111 | * @uses apply_filters() Calls 'the_title_rss' on the post title. |