force_ssl_content()

force_ssl_content( bool|null $force = null ): bool

function force_ssl_content( $force = null ) {
	static $forced_content = false;

	if ( ! is_null( $force ) ) {
		$old_forced     = $forced_content;
		$forced_content = (bool) $force;
		return $old_forced;
	}

	return $forced_content;
}