如果是汉字的话那就不应该正确输出啊。。而且比如PHP文件编码为UTF-8，那么内部的String类型也是UTF-8么？
我的回答不是。
那String既然不支持UTF-8，那显示的时候为什么又不会出现错误呢？？
回复内容：
如果是汉字的话那就不应该正确输出啊。。而且比如PHP文件编码为UTF-8，那么内部的String类型也是UTF-8么？
我的回答不是。
那String既然不支持UTF-8，那显示的时候为什么又不会出现错误呢？？
PHP文件编码是u8，string储存的也是u8啊，不信你urlencode看一下好了。如果你页面的charset在meta里面设置了u8理所当然就不会显示错误。你试试设置成gbk，看他错误不错误。
我觉得它所指的不支持 是指不能作为变量名、函数名、参数名吧？
unicode作为字符串 保存起来的只是它的编码 php不解析他就不会出问题
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