apply_filters( 'comment_form_fields', array $comment_fields )

2782			 * Filters the comment form fields, including the textarea.2783			 *2784			 * @since 4.4.02785			 *2786			 * @param array $comment_fields The comment fields.2787			 */2788			$comment_fields = apply_filters( 'comment_form_fields', $comment_fields );2789 2790			// Get an array of field names, excluding the textarea.2791			$comment_field_keys = array_diff( array_keys( $comment_fields ), array( 'comment' ) );2792 2793			// Get the first and the last field name, excluding the textarea.2794			$first_field = reset( $comment_field_keys );