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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 |
|---|---|
| 634 | * Filters the comment author's email cookie before it is set. |
| 635 | * |
| 636 | * When this filter hook is evaluated in wp_filter_comment(), |
| 637 | * the comment author's email string is passed. |
| 638 | * |
| 639 | * @since 1.5.0 |
| 640 | * |
| 641 | * @param string $author_email_cookie The comment author email cookie. |
| 642 | */ |
| 643 | $comment_author_email = apply_filters( 'pre_comment_author_email', $_COOKIE[ 'comment_author_email_' . COOKIEHASH ] ); |
| 644 | $comment_author_email = wp_unslash( $comment_author_email ); |
| 645 | $comment_author_email = esc_attr( $comment_author_email ); |
| 646 | |
| 647 | $_COOKIE[ 'comment_author_email_' . COOKIEHASH ] = $comment_author_email; |
| 648 | } |
| 649 | |
| 650 | if ( isset( $_COOKIE[ 'comment_author_url_' . COOKIEHASH ] ) ) { |
| 651 | /** |
| 652 | * Filters the comment author's URL cookie before it is set. |
| Line | Code |
| 2178 | * |
| 2179 | * @since 1.5.0 |
| 2180 | * |
| 2181 | * @param string $comment_author_ip The comment author's IP address. |
| 2182 | */ |
| 2183 | $commentdata['comment_author_IP'] = apply_filters( 'pre_comment_user_ip', $commentdata['comment_author_IP'] ); |
| 2184 | /** This filter is documented in wp-includes/comment.php */ |
| 2185 | $commentdata['comment_author_url'] = apply_filters( 'pre_comment_author_url', $commentdata['comment_author_url'] ); |
| 2186 | /** This filter is documented in wp-includes/comment.php */ |
| 2187 | $commentdata['comment_author_email'] = apply_filters( 'pre_comment_author_email', $commentdata['comment_author_email'] ); |
| 2188 | |
| 2189 | $commentdata['filtered'] = true; |
| 2190 | |
| 2191 | return $commentdata; |
| 2192 | } |
| 2193 | |
| 2194 | /** |
| 2195 | * Determines whether a comment should be blocked because of comment flood. |
| 2196 | * |