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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 |
|---|---|
| 772 | * Filter the comment author's email cookie before it is set. |
| 773 | * |
| 774 | * When this filter hook is evaluated in wp_filter_comment(), |
| 775 | * the comment author's email string is passed. |
| 776 | * |
| 777 | * @since 1.5.0 |
| 778 | * |
| 779 | * @param string $author_email_cookie The comment author email cookie. |
| 780 | */ |
| 781 | $comment_author_email = apply_filters( 'pre_comment_author_email', $_COOKIE['comment_author_email_' . COOKIEHASH] ); |
| 782 | $comment_author_email = wp_unslash($comment_author_email); |
| 783 | $comment_author_email = esc_attr($comment_author_email); |
| 784 | $_COOKIE['comment_author_email_'.COOKIEHASH] = $comment_author_email; |
| 785 | } |
| 786 | |
| 787 | if ( isset( $_COOKIE['comment_author_url_' . COOKIEHASH] ) ) { |
| 788 | /** |
| 789 | * Filter the comment author's URL cookie before it is set. |
| 790 | * |
| Line | Code |
| 1713 | * |
| 1714 | * @since 1.5.0 |
| 1715 | * |
| 1716 | * @param int $comment_author_ip The comment author's IP. |
| 1717 | */ |
| 1718 | $commentdata['comment_author_IP'] = apply_filters( 'pre_comment_user_ip', $commentdata['comment_author_IP'] ); |
| 1719 | /** This filter is documented in wp-includes/comment.php */ |
| 1720 | $commentdata['comment_author_url'] = apply_filters( 'pre_comment_author_url', $commentdata['comment_author_url'] ); |
| 1721 | /** This filter is documented in wp-includes/comment.php */ |
| 1722 | $commentdata['comment_author_email'] = apply_filters( 'pre_comment_author_email', $commentdata['comment_author_email'] ); |
| 1723 | $commentdata['filtered'] = true; |
| 1724 | return $commentdata; |
| 1725 | } |
| 1726 | |
| 1727 | /** |
| 1728 | * Whether a comment should be blocked because of comment flood. |
| 1729 | * |
| 1730 | * @since 2.1.0 |
| 1731 | * |