Yii2 已经开始使用 PHP 5.4'■ 短数组语法.由于以下原因，您的错误逐渐增加:

Yii2 has started using PHP 5.4's Short array syntax. Your error creeps up because of:

spl_autoload_register(['Yii', 'autoload'], true, true);

在 Yii.php 中，这是新的短数组句法.正如您已经发现的，您现在需要安装 PHP 5.4 才能运行 Yii2 应用程序.

in Yii.php, which is the new short array syntax. As you have already figured out, you need to install PHP 5.4 now to run Yii2 apps.

对短数组语法进行更改的提交.

已更改的文档和作曲家详细信息.

决定迁移到 PHP 5.4 的讨论.

由于 Yii2 仍在大力开发中，其需求也在发生变化.所以安装前请务必仔细阅读自述文件.

As Yii2 is still in heavy development, its requirements are also changing. So be sure to read the readme thoroughly before installing.

另请参阅PHP 5.4 的向后不兼容更改列表，对您现有的代码进行更改.

See also the Backward Incompatible changes list for PHP 5.4, to make changes to your existing code.