composer ：错误：Could not find a version of package matching your minimum-stability (stable). Require it with an explicit version constraint allowing its desired stability

composer 安装 composer require --dev sandrokeil/php-to-zephir 时出现

Could not find a version of package matching your minimum-stability (stable). Require it with an explicit version constraint allowing its desired stability

解决方法：https://github.com/composer/composer/issues/5118

用以下命令解决：

composer require "sandrokeil/php-to-zephir @dev"