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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 |
|---|---|
| 564 | * Filters the comment author's email cookie before it is set. |
| 565 | * |
| 566 | * When this filter hook is evaluated in wp_filter_comment(), |
| 567 | * the comment author's email string is passed. |
| 568 | * |
| 569 | * @since 1.5.0 |
| 570 | * |
| 571 | * @param string $author_email_cookie The comment author email cookie. |
| 572 | */ |
| 573 | $comment_author_email = apply_filters( 'pre_comment_author_email', $_COOKIE['comment_author_email_' . COOKIEHASH] ); |
| 574 | $comment_author_email = wp_unslash($comment_author_email); |
| 575 | $comment_author_email = esc_attr($comment_author_email); |
| 576 | $_COOKIE['comment_author_email_'.COOKIEHASH] = $comment_author_email; |
| 577 | } |
| 578 | |
| 579 | if ( isset( $_COOKIE['comment_author_url_' . COOKIEHASH] ) ) { |
| 580 | /** |
| 581 | * Filters the comment author's URL cookie before it is set. |
| 582 | * |
| Line | Code |
| 1818 | * |
| 1819 | * @since 1.5.0 |
| 1820 | * |
| 1821 | * @param string $comment_author_ip The comment author's IP. |
| 1822 | */ |
| 1823 | $commentdata['comment_author_IP'] = apply_filters( 'pre_comment_user_ip', $commentdata['comment_author_IP'] ); |
| 1824 | /** This filter is documented in wp-includes/comment.php */ |
| 1825 | $commentdata['comment_author_url'] = apply_filters( 'pre_comment_author_url', $commentdata['comment_author_url'] ); |
| 1826 | /** This filter is documented in wp-includes/comment.php */ |
| 1827 | $commentdata['comment_author_email'] = apply_filters( 'pre_comment_author_email', $commentdata['comment_author_email'] ); |
| 1828 | $commentdata['filtered'] = true; |
| 1829 | return $commentdata; |
| 1830 | } |
| 1831 | |
| 1832 | /** |
| 1833 | * Whether a comment should be blocked because of comment flood. |
| 1834 | * |
| 1835 | * @since 2.1.0 |
| 1836 | * |