php - preg_match_all 在 PHP 中使用 utf-8 返回正确的偏移量

Answer 1

You have to add the /u modifyer to the $regex to match unicode chars.

$regex = "/MATCH/u";

See: Pattern Modifiers

Answer 2

Solved it myself, used a roundabout method, but it works, the key is this regex:

/[一-龠]|[ぁ-ゔ]|[ァ-ヴー]|[a-zA-Z0-9]|[ａ-ｚＡ-Ｚ０-９][々〆〤]/u

I used that to preg_replace any character with a single digit number and then found offsets in the new string.