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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 |
|---|---|
| 343 | /** |
| 344 | * Filters the comment author's URL for display. |
| 345 | * |
| 346 | * @since 1.2.0 |
| 347 | * @since 4.1.0 The `$comment_ID` parameter was added. |
| 348 | * |
| 349 | * @param string $author_url The comment author's URL. |
| 350 | * @param int $comment_ID The comment ID. |
| 351 | */ |
| 352 | echo apply_filters( 'comment_url', $author_url, $comment->comment_ID ); |
| 353 | } |
| 354 | |
| 355 | /** |
| 356 | * Retrieves the HTML link of the URL of the author of the current comment. |
| 357 | * |
| 358 | * $linktext parameter is only used if the URL does not exist for the comment |
| 359 | * author. If the URL does exist then the URL will be used and the $linktext |
| 360 | * will be ignored. |
| 361 | * |