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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 |
|---|---|
| 548 | * Filters the comment author's email cookie before it is set. |
| 549 | * |
| 550 | * When this filter hook is evaluated in wp_filter_comment(), |
| 551 | * the comment author's email string is passed. |
| 552 | * |
| 553 | * @since 1.5.0 |
| 554 | * |
| 555 | * @param string $author_email_cookie The comment author email cookie. |
| 556 | */ |
| 557 | $comment_author_email = apply_filters( 'pre_comment_author_email', $_COOKIE['comment_author_email_' . COOKIEHASH] ); |
| 558 | $comment_author_email = wp_unslash($comment_author_email); |
| 559 | $comment_author_email = esc_attr($comment_author_email); |
| 560 | $_COOKIE['comment_author_email_'.COOKIEHASH] = $comment_author_email; |
| 561 | } |
| 562 | |
| 563 | if ( isset( $_COOKIE['comment_author_url_' . COOKIEHASH] ) ) { |
| 564 | /** |
| 565 | * Filters the comment author's URL cookie before it is set. |
| 566 | * |
| Line | Code |
| 1671 | * |
| 1672 | * @since 1.5.0 |
| 1673 | * |
| 1674 | * @param string $comment_author_ip The comment author's IP. |
| 1675 | */ |
| 1676 | $commentdata['comment_author_IP'] = apply_filters( 'pre_comment_user_ip', $commentdata['comment_author_IP'] ); |
| 1677 | /** This filter is documented in wp-includes/comment.php */ |
| 1678 | $commentdata['comment_author_url'] = apply_filters( 'pre_comment_author_url', $commentdata['comment_author_url'] ); |
| 1679 | /** This filter is documented in wp-includes/comment.php */ |
| 1680 | $commentdata['comment_author_email'] = apply_filters( 'pre_comment_author_email', $commentdata['comment_author_email'] ); |
| 1681 | $commentdata['filtered'] = true; |
| 1682 | return $commentdata; |
| 1683 | } |
| 1684 | |
| 1685 | /** |
| 1686 | * Whether a comment should be blocked because of comment flood. |
| 1687 | * |
| 1688 | * @since 2.1.0 |
| 1689 | * |