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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 |
|---|---|
| 155 | * Retrieve the url of the author of the current comment. |
| 156 | * |
| 157 | * @since 1.5 |
| 158 | * @uses apply_filters() Calls 'get_comment_author_url' hook on the comment author's URL |
| 159 | * |
| 160 | * @return string |
| 161 | */ |
| 162 | function get_comment_author_url() { |
| 163 | global $comment; |
| 164 | return apply_filters('get_comment_author_url', $comment->comment_author_url); |
| 165 | } |
| 166 | |
| 167 | /** |
| 168 | * Display the url of the author of the current comment. |
| 169 | * |
| 170 | * @since 0.71 |
| 171 | * @uses apply_filters() |
| 172 | * @uses get_comment_author_url() Retrieves the comment author's URL |
| 173 | */ |