Php - regular expression to check if the string has chinese chars

问题

I have the string $str and I want to check if it`s content has Chinese chars or not (true/false)

$str = "赕就可消垻,只有当所有方块都被消垻时才可以过关";

can you please help me?

Thanks! Adrian

回答1:

You could use a unicode character class http://www.regular-expressions.info/unicode.html

preg_match("/\p{Han}+/u", $utf8_str);

This just checks for the presence of at least one chinese character. You might want to expand on this if you want to match the complete string.

回答2:

@mario answer is right!

For Chinese chars use this regex: /[\x{4e00}-\x{9fa5}]+/u

And Don't forget the u modifier!!!

About u modifier reference

TKS to mario

回答3:

This link to a previous question on identifying simplified or traditional Chinese might give you some ideas... you don't actually specify which you mean, and I don't know Chinese well enough to recognise the difference

回答4:

preg_match("/^\p{Han}{2,10}+$/u", $str);

Use /^\p{Han}{2,10}+$/u regex which allows Chinese character only.

1. It allows chinese character only &
2. It allows Minimum 2 character &
3. It allows maximum 10 character

You can change minimum and maximum character by changing {2,10} as per your need.

\p & /u are very important to add please don't avoid to add it.

来源：https://stackoverflow.com/questions/4923319/php-regular-expression-to-check-if-the-string-has-chinese-chars