_get_page_link( int|WP_Post $post = 0, bool $leavename = false, bool $sample = false ): string

428function _get_page_link( $post = 0, $leavename = false, $sample = false ) {429	global $wp_rewrite;430 431	$post = get_post( $post );432 433	$force_plain_link = wp_force_plain_post_permalink( $post );434 435	$link = $wp_rewrite->get_page_permastruct();436 437	if ( ! empty( $link ) && ( ( isset( $post->post_status ) && ! $force_plain_link ) || $sample ) ) {438		if ( ! $leavename ) {439			$link = str_replace( '%pagename%', get_page_uri( $post ), $link );440		}441 442		$link = home_url( $link );443		$link = user_trailingslashit( $link, 'page' );444	} else {445		$link = home_url( '?page_id=' . $post->ID );446	}447 448	/**449	 * Filters the permalink for a non-page_on_front page.450	 *451	 * @since 2.1.0452	 *453	 * @param string $link    The page's permalink.454	 * @param int    $post_id The ID of the page.455	 */456	return apply_filters( '_get_page_link', $link, $post->ID );457}