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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 |
|---|---|
| 21 | return $title; |
| 22 | } |
| 23 | |
| 24 | function wp_title_rss($sep = '»') { |
| 25 | echo apply_filters('wp_title_rss', get_wp_title_rss($sep)); |
| 26 | } |
| 27 | |
| 28 | function get_the_title_rss() { |
| 29 | $title = get_the_title(); |
| 30 | $title = apply_filters('the_title_rss', $title); |
| 31 | return $title; |
| 32 | } |
| 33 | |
| 34 | |
| 35 | function the_title_rss() { |
| 36 | echo get_the_title_rss(); |
| 37 | } |
| 38 | |
| 39 | |