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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 |
|---|---|
| 108 | function get_comment_author_link() { |
| 109 | /** @todo Only call these functions when they are needed. Include in if... else blocks */ |
| 110 | $url = get_comment_author_url(); |
| 111 | $author = get_comment_author(); |
| 112 | |
| 113 | if ( empty( $url ) || 'http://' == $url ) |
| 114 | $return = $author; |
| 115 | else |
| 116 | $return = "<a href='$url' rel='external nofollow'>$author</a>"; |
| 117 | return apply_filters('get_comment_author_link', $return); |
| 118 | } |
| 119 | |
| 120 | /** |
| 121 | * Display the html link to the url of the author of the current comment. |
| 122 | * |
| 123 | * @since 0.71 |
| 124 | * @see get_comment_author_link() Echos result |
| 125 | */ |
| 126 | function comment_author_link() { |