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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 |
|---|---|
| 597 | * Filters the comment author's email cookie before it is set. |
| 598 | * |
| 599 | * When this filter hook is evaluated in wp_filter_comment(), |
| 600 | * the comment author's email string is passed. |
| 601 | * |
| 602 | * @since 1.5.0 |
| 603 | * |
| 604 | * @param string $author_email_cookie The comment author email cookie. |
| 605 | */ |
| 606 | $comment_author_email = apply_filters( 'pre_comment_author_email', $_COOKIE[ 'comment_author_email_' . COOKIEHASH ] ); |
| 607 | $comment_author_email = wp_unslash( $comment_author_email ); |
| 608 | $comment_author_email = esc_attr( $comment_author_email ); |
| 609 | $_COOKIE[ 'comment_author_email_' . COOKIEHASH ] = $comment_author_email; |
| 610 | } |
| 611 | |
| 612 | if ( isset( $_COOKIE[ 'comment_author_url_' . COOKIEHASH ] ) ) { |
| 613 | /** |
| 614 | * Filters the comment author's URL cookie before it is set. |
| 615 | * |
| Line | Code |
| 1969 | * |
| 1970 | * @since 1.5.0 |
| 1971 | * |
| 1972 | * @param string $comment_author_ip The comment author's IP address. |
| 1973 | */ |
| 1974 | $commentdata['comment_author_IP'] = apply_filters( 'pre_comment_user_ip', $commentdata['comment_author_IP'] ); |
| 1975 | /** This filter is documented in wp-includes/comment.php */ |
| 1976 | $commentdata['comment_author_url'] = apply_filters( 'pre_comment_author_url', $commentdata['comment_author_url'] ); |
| 1977 | /** This filter is documented in wp-includes/comment.php */ |
| 1978 | $commentdata['comment_author_email'] = apply_filters( 'pre_comment_author_email', $commentdata['comment_author_email'] ); |
| 1979 | $commentdata['filtered'] = true; |
| 1980 | return $commentdata; |
| 1981 | } |
| 1982 | |
| 1983 | /** |
| 1984 | * Whether a comment should be blocked because of comment flood. |
| 1985 | * |
| 1986 | * @since 2.1.0 |
| 1987 | * |