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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 |
---|---|
40 | function get_comment_author_link() { |
41 | global $comment; |
42 | $url = get_comment_author_url(); |
43 | $author = get_comment_author(); |
44 |
|
45 | if ( empty( $url ) || 'http://' == $url ) |
46 | $return = $author; |
47 | else |
48 | $return = "<a href='$url' rel='external nofollow'>$author</a>"; |
49 | return apply_filters('get_comment_author_link', $return); |
50 | } |
51 |
|
52 | function comment_author_link() { |
53 | echo get_comment_author_link(); |
54 | } |
55 |
|
56 | function get_comment_author_IP() { |
57 | global $comment; |
58 | return apply_filters('get_comment_author_IP', $comment->comment_author_IP); |