apply_filters( 'comment_form_fields', array $comment_fields )

2781			 * Filters the comment form fields, including the textarea.2782			 *2783			 * @since 4.4.02784			 *2785			 * @param array $comment_fields The comment fields.2786			 */2787			$comment_fields = apply_filters( 'comment_form_fields', $comment_fields );2788 2789			// Get an array of field names, excluding the textarea.2790			$comment_field_keys = array_diff( array_keys( $comment_fields ), array( 'comment' ) );2791 2792			// Get the first and the last field name, excluding the textarea.2793			$first_field = reset( $comment_field_keys );