Can the php array be used as a key in Chinese? What are the drawbacks?

Can the array in php be used as a key in Chinese? The answer is yes, of course. Since it can be used, what's wrong? The disadvantage is that if the page encoding is not uniform, there may be exceptions. But I personally think that the array key should not use Chinese characters, and it would be better to use characters or numbers.

Can the array in php be used as a key in Chinese? The answer is yes, of course. Since it can be used, what's wrong? The disadvantage is that if the page encoding is not uniform, there may be exceptions. But I personally think that the array key should not use Chinese characters, and it would be better to use characters or numbers.

Can the array in php be used as a key in Chinese?

Yes, of course.

What's wrong with it now that it can be used?

The disadvantage is that if the page encoding is not uniform, there may be exceptions.

However, I personally think that the array key should not be in Chinese, and it would be better to use characters or numbers.