How to allow textbox only to accept Japan characters, number and word in PHP?

Question

I try to search about RegEx and find some answer. But it isn't full. Example:

Only accept Japan character:

(?:\xEF\xBD[\xA1-\xBF]|\xEF\xBE[\x80-\x9F])|[\x20-\x7E]

Only accept number and word:

[^a-zA-Z0-9]

But I don't incorporate together. Please help!

Update answer

/^[\p{Katakana}\p{Hiragana}\p{Han}a-zA-Z0-9]+$/iu

Answer 1

您可以在字符类中组合以下Unicode属性和字母数字集。

/^[\p{Katakana}\p{Hiragana}\p{Han}a-z0-9]+$/iu