PhpStorm显示PHP方法的代码错误 [英] PhpStorm showing code error for PHP method

问题描述

我很好奇为什么PhpStorm编辑器拒绝以下语法:

I am curious as to why the following syntax is rejected by my PhpStorm editor:

PhpStorm版本:2016.1.2

PhpStorm version: 2016.1.2

推荐答案

1. 可空参数/返回类型(在您的示例中为?User)是 /strong>(比您的2016.1.x更新)

1. Nullable parameters/return types (?User from your example) is a PHP 7.1 feature.
2. PHP Language Level must be set to 7.1 in PhpStorm settings for this project (although right now it does not produce an error if language is set below 7.1 -- see WI-32136 ticket).
3. Support for nullable types was added in PhpStorm 2016.2.2 (which is newer than your 2016.1.x)

结论:将您的PhpStorm升级到最新版本(目前为2017.2.1).至少您需要具有PhpStorm 2016.2.2才能支持此特定语法9(不显示错误).

Conclusion: upgrade your PhpStorm to the latest version (which is 2017.2.1 at this moment). At very least you need to have PhpStorm 2016.2.2 for this particular syntax to be supported 9not showing an error).

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