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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.
This hook occurs 2 times in this file.
| Line | Code |
|---|---|
| 25 | |
| 26 | function the_ID() { |
| 27 | global $id; |
| 28 | echo $id; |
| 29 | } |
| 30 | |
| 31 | function the_title($before = '', $after = '', $echo = true) { |
| 32 | $title = get_the_title(); |
| 33 | if (!empty($title)) { |
| 34 | $title = apply_filters('the_title', $before . $title . $after); |
| 35 | if ($echo) |
| 36 | echo $title; |
| 37 | else |
| 38 | return $title; |
| 39 | } |
| 40 | } |
| 41 | |
| 42 | function the_title_rss() { |
| 43 | $title = get_the_title(); |
| 44 | $title = apply_filters('the_title', $title); |
| 45 | $title = apply_filters('the_title_rss', $title); |
| 46 | echo $title; |
| 47 | } |
| 48 | |
| 49 | function get_the_title() { |
| 50 | global $post; |
| 51 | $output = stripslashes($post->post_title); |
| 52 | if (!empty($post->post_password)) { // if there's a password |
| 53 | $output = 'Protected: ' . $output; |