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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 |
|---|---|
| 591 | * Filters the comment author's name cookie before it is set. |
| 592 | * |
| 593 | * When this filter hook is evaluated in wp_filter_comment(), |
| 594 | * the comment author's name string is passed. |
| 595 | * |
| 596 | * @since 1.5.0 |
| 597 | * |
| 598 | * @param string $author_cookie The comment author name cookie. |
| 599 | */ |
| 600 | $comment_author = apply_filters( 'pre_comment_author_name', $_COOKIE[ 'comment_author_' . COOKIEHASH ] ); |
| 601 | $comment_author = wp_unslash( $comment_author ); |
| 602 | $comment_author = esc_attr( $comment_author ); |
| 603 | |
| 604 | $_COOKIE[ 'comment_author_' . COOKIEHASH ] = $comment_author; |
| 605 | } |
| 606 | |
| 607 | if ( isset( $_COOKIE[ 'comment_author_email_' . COOKIEHASH ] ) ) { |
| 608 | /** |
| 609 | * Filters the comment author's email cookie before it is set. |
| Line | Code |
| 2113 | /** |
| 2114 | * Filters the comment author's browser user agent before it is set. |
| 2115 | * |
| 2116 | * @since 1.5.0 |
| 2117 | * |
| 2118 | * @param string $comment_agent The comment author's browser user agent. |
| 2119 | */ |
| 2120 | $commentdata['comment_agent'] = apply_filters( 'pre_comment_user_agent', ( isset( $commentdata['comment_agent'] ) ? $commentdata['comment_agent'] : '' ) ); |
| 2121 | /** This filter is documented in wp-includes/comment.php */ |
| 2122 | $commentdata['comment_author'] = apply_filters( 'pre_comment_author_name', $commentdata['comment_author'] ); |
| 2123 | /** |
| 2124 | * Filters the comment content before it is set. |
| 2125 | * |
| 2126 | * @since 1.5.0 |
| 2127 | * |
| 2128 | * @param string $comment_content The comment content. |
| 2129 | */ |
| 2130 | $commentdata['comment_content'] = apply_filters( 'pre_comment_content', $commentdata['comment_content'] ); |
| 2131 | /** |