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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 |
|---|---|
| 1 | <?php |
| 2 | |
| 3 | function get_bloginfo_rss($show = '') { |
| 4 | $info = strip_tags(get_bloginfo($show)); |
| 5 | return apply_filters('get_bloginfo_rss', convert_chars($info)); |
| 6 | } |
| 7 | |
| 8 | |
| 9 | function bloginfo_rss($show = '') { |
| 10 | echo apply_filters('bloginfo_rss', get_bloginfo_rss($show)); |
| 11 | } |
| 12 | |
| 13 | function get_wp_title_rss($sep = '»') { |
| 14 | $title = wp_title($sep, false); |
| 15 | $title = apply_filters('get_wp_title_rss', $title); |
| 16 | return $title; |
| 17 | } |
| 18 | |
| 19 | function wp_title_rss($sep = '»') { |