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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.
| Line | Code |
|---|---|
| 74 | do_action( 'comment_on_password_protected', $comment_post_ID ); |
| 75 | exit; |
| 76 | } else { |
| 77 | /** |
| 78 | * Fires before a comment is posted. |
| 79 | * |
| 80 | * @since unknown |
| 81 | * @param int $comment_post_ID Post ID. |
| 82 | */ |
| 83 | do_action( 'pre_comment_on_post', $comment_post_ID ); |
| 84 | } |
| 85 | |
| 86 | $comment_author = ( isset($_POST['author']) ) ? trim(strip_tags($_POST['author'])) : null; |
| 87 | $comment_author_email = ( isset($_POST['email']) ) ? trim($_POST['email']) : null; |
| 88 | $comment_author_url = ( isset($_POST['url']) ) ? trim($_POST['url']) : null; |
| 89 | $comment_content = ( isset($_POST['comment']) ) ? trim($_POST['comment']) : null; |
| 90 | |
| 91 | // If the user is logged in |
| 92 | $user = wp_get_current_user(); |