PHP regex to accept Japanese and english languages with no special character

Question

I am trying to create a regex to filter only alphabets or numbers from English and Japanese languages. This is what I have tried,

preg_match('/[\p{L}\p{N}\p{Katakana}\p{Hiragana}\p{Han}]+/u', $value)

But I am not getting the desired result. What might I be doing wrong? this one also i tried

preg_match('/[\p{Cn}\p{N}]+/u', $value)

also, I need to prevent special characters

('/[(a-zA-Z 0-9\_\{\}\!\$\%\&\.\|\?\*\+\(\)\-\~)(\p{Cn})]/', $value)) 

this one wont work together

Answer 1

Try with this regex : it will match letters (upper and lower case), numbers and unicode characters from katakana , hiragana and han subset

preg_match('/^[a-zA-Z0-9\p{Katakana}\p{Hiragana}\p{Han} $]+/u', $value)

Edit : added space to the list of allowed chars and $ and ^ to match entiere string.

• STORE-11 ぼ <>?>>^^ † ‡ dd NN will return 0 (no match)
• ぼ abc 12 will return 1 (matched)

demo of the regex with given examples : https://www.phpliveregex.com/p/oef