b“字符串"是什么?在dd()函数中意味着什么? [英] What does b"string" mean in dd() function?

问题描述

dd($result);

结果:

...
+description: "عند...ترنت."    
+keywords: b"°ó¨Ü¨ü¨ê...Ü°®"
...

+keywords在字符串前面有字母"b"，说明中没有该字母……"b"是什么意思?如果可能的话，如何转换字符串?

+keywords has the letter 'b' in front of the string, description does not have that... What does the 'b' mean? And if it is possible, how can I convert the string?

顺便说一句，如果我var_dump关键字，这是结果: string(116) "���,����,�,��,����������,����������,��,��������,�������,������:"

Btw, this is the result if I var_dump the keywords: string(116) "���,����,�,��,����������,����������,��,��������,�������,������:"

我认为它必须与字符集有关，我正在使用UTF-8.

I think it has to do something with charset, i'm using UTF-8.

推荐答案

如果您阅读:您可以看到https://symfony.com/doc/current/components/var_dumper.html (Laravel使用的是)

If you read: https://symfony.com/doc/current/components/var_dumper.html (which is what Laravel is using) you can see:

所以答案是字符串在UTF-8中无效(我猜b代表二进制).

So the answer is the string is not valid in UTF-8 (I am guessing b stands for binary).

也许还要检查是否可以检测到编码.

Maybe check if you can detect the encoding if it's something else.

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