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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 |
|---|---|
| 114 | $excerpt = ''; |
| 115 | for ($i=0; $i<$k; $i++) { |
| 116 | $excerpt .= $blah[$i] . ' '; |
| 117 | } |
| 118 | $excerpt .= ($use_dotdotdot) ? '...' : ''; |
| 119 | return apply_filters('get_comment_excerpt', $excerpt); |
| 120 | } |
| 121 | |
| 122 | function comment_excerpt() { |
| 123 | echo apply_filters('comment_excerpt', get_comment_excerpt() ); |
| 124 | } |
| 125 | |
| 126 | function get_comment_ID() { |
| 127 | global $comment; |
| 128 | return apply_filters('get_comment_ID', $comment->comment_ID); |
| 129 | } |
| 130 | |
| 131 | function comment_ID() { |
| 132 | echo get_comment_ID(); |