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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 |
|---|---|
| 755 | * Filter the comment author's name cookie before it is set. |
| 756 | * |
| 757 | * When this filter hook is evaluated in wp_filter_comment(), |
| 758 | * the comment author's name string is passed. |
| 759 | * |
| 760 | * @since 1.5.0 |
| 761 | * |
| 762 | * @param string $author_cookie The comment author name cookie. |
| 763 | */ |
| 764 | $comment_author = apply_filters( 'pre_comment_author_name', $_COOKIE['comment_author_' . COOKIEHASH] ); |
| 765 | $comment_author = wp_unslash($comment_author); |
| 766 | $comment_author = esc_attr($comment_author); |
| 767 | $_COOKIE['comment_author_' . COOKIEHASH] = $comment_author; |
| 768 | } |
| 769 | |
| 770 | if ( isset( $_COOKIE['comment_author_email_' . COOKIEHASH] ) ) { |
| 771 | /** |
| 772 | * Filter the comment author's email cookie before it is set. |
| 773 | * |
| Line | Code |
| 1693 | /** |
| 1694 | * Filter the comment author's browser user agent before it is set. |
| 1695 | * |
| 1696 | * @since 1.5.0 |
| 1697 | * |
| 1698 | * @param int $comment_agent The comment author's browser user agent. |
| 1699 | */ |
| 1700 | $commentdata['comment_agent'] = apply_filters( 'pre_comment_user_agent', ( isset( $commentdata['comment_agent'] ) ? $commentdata['comment_agent'] : '' ) ); |
| 1701 | /** This filter is documented in wp-includes/comment.php */ |
| 1702 | $commentdata['comment_author'] = apply_filters( 'pre_comment_author_name', $commentdata['comment_author'] ); |
| 1703 | /** |
| 1704 | * Filter the comment content before it is set. |
| 1705 | * |
| 1706 | * @since 1.5.0 |
| 1707 | * |
| 1708 | * @param int $comment_content The comment content. |
| 1709 | */ |
| 1710 | $commentdata['comment_content'] = apply_filters( 'pre_comment_content', $commentdata['comment_content'] ); |
| 1711 | /** |