CODEWITHSUNDEEP
phpregexstringcjk
Adrian
Adrian

Reputation: 1017

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

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

Upvotes: 31

Views: 29887

Answers (4)

Newton Kumar
Newton Kumar

Reputation: 350

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.

Upvotes: 2

eaglewu
eaglewu

Reputation: 470

@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

Upvotes: 3

mario
mario

Reputation: 145482

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.

Upvotes: 72

Mark Baker
Mark Baker

Reputation: 212422

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

Upvotes: 1

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