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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.
This hook occurs 2 times in this file.
| Line | Code |
|---|---|
| 697 | * Filter the comment author's name cookie before it is set. |
| 698 | * |
| 699 | * When this filter hook is evaluated in wp_filter_comment(), |
| 700 | * the comment author's name string is passed. |
| 701 | * |
| 702 | * @since 1.5.0 |
| 703 | * |
| 704 | * @param string $author_cookie The comment author name cookie. |
| 705 | */ |
| 706 | $comment_author = apply_filters( 'pre_comment_author_name', $_COOKIE['comment_author_' . COOKIEHASH] ); |
| 707 | $comment_author = wp_unslash($comment_author); |
| 708 | $comment_author = esc_attr($comment_author); |
| 709 | $_COOKIE['comment_author_' . COOKIEHASH] = $comment_author; |
| 710 | } |
| 711 | |
| 712 | if ( isset( $_COOKIE['comment_author_email_' . COOKIEHASH] ) ) { |
| 713 | /** |
| 714 | * Filter the comment author's email cookie before it is set. |
| 715 | * |
| Line | Code |
| 1601 | /** |
| 1602 | * Filter the comment author's browser user agent before it is set. |
| 1603 | * |
| 1604 | * @since 1.5.0 |
| 1605 | * |
| 1606 | * @param int $comment_agent The comment author's browser user agent. |
| 1607 | */ |
| 1608 | $commentdata['comment_agent'] = apply_filters( 'pre_comment_user_agent', ( isset( $commentdata['comment_agent'] ) ? $commentdata['comment_agent'] : '' ) ); |
| 1609 | /** This filter is documented in wp-includes/comment.php */ |
| 1610 | $commentdata['comment_author'] = apply_filters( 'pre_comment_author_name', $commentdata['comment_author'] ); |
| 1611 | /** |
| 1612 | * Filter the comment content before it is set. |
| 1613 | * |
| 1614 | * @since 1.5.0 |
| 1615 | * |
| 1616 | * @param int $comment_content The comment content. |
| 1617 | */ |
| 1618 | $commentdata['comment_content'] = apply_filters( 'pre_comment_content', $commentdata['comment_content'] ); |
| 1619 | /** |