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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 |
|---|---|
| 12 | function the_title_rss() { |
| 13 | $title = get_the_title(); |
| 14 | $title = apply_filters('the_title', $title); |
| 15 | $title = apply_filters('the_title_rss', $title); |
| 16 | echo $title; |
| 17 | } |
| 18 | |
| 19 | function the_content_rss($more_link_text='(more...)', $stripteaser=0, $more_file='', $cut = 0, $encode_html = 0) { |
| 20 | $content = get_the_content($more_link_text, $stripteaser, $more_file); |
| 21 | $content = apply_filters('the_content', $content); |
| 22 | if ($cut && !$encode_html) { |
| 23 | $encode_html = 2; |
| 24 | } |
| 25 | if ($encode_html == 1) { |
| 26 | $content = wp_specialchars($content); |
| 27 | $cut = 0; |
| 28 | } elseif ($encode_html == 0) { |
| 29 | $content = make_url_footnote($content); |
| 30 | } elseif ($encode_html == 2) { |