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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 |
|---|---|
| 237 | /** |
| 238 | * Filters the rel attributes of the comment author's link. |
| 239 | * |
| 240 | * @since 6.2.0 |
| 241 | * |
| 242 | * @param string[] $rel_parts An array of strings representing the rel tags |
| 243 | * which will be joined into the anchor's rel attribute. |
| 244 | * @param WP_Comment $comment The comment object. |
| 245 | */ |
| 246 | $rel_parts = apply_filters( 'comment_author_link_rel', $rel_parts, $comment ); |
| 247 | |
| 248 | $rel = implode( ' ', $rel_parts ); |
| 249 | $rel = esc_attr( $rel ); |
| 250 | // Empty space before 'rel' is necessary for later sprintf(). |
| 251 | $rel = ! empty( $rel ) ? sprintf( ' rel="%s"', $rel ) : ''; |
| 252 | |
| 253 | $return = sprintf( |
| 254 | '<a href="%1$s" class="url"%2$s>%3$s</a>', |
| 255 | $url, |