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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 |
|---|---|
| 325 | /** |
| 326 | * Filter the comment author's URL for display. |
| 327 | * |
| 328 | * @since 1.2.0 |
| 329 | * @since 4.1.0 The `$comment_ID` parameter was added. |
| 330 | * |
| 331 | * @param string $author_url The comment author's URL. |
| 332 | * @param int $comment_ID The comment ID. |
| 333 | */ |
| 334 | echo apply_filters( 'comment_url', $author_url, $comment->comment_ID ); |
| 335 | } |
| 336 | |
| 337 | /** |
| 338 | * Retrieves the HTML link of the url of the author of the current comment. |
| 339 | * |
| 340 | * $linktext parameter is only used if the URL does not exist for the comment |
| 341 | * author. If the URL does exist then the URL will be used and the $linktext |
| 342 | * will be ignored. |
| 343 | * |