How can I extract or preg_replace chinese characters in a string?

问题

I am currently have a list of string like this

蘋果，香蕉，橙。
榴蓮, 啤梨
鳳爪，排骨，雞排
24個男，2個女，30個老人

What I want to do is just explode all chinese and alphanumeric character from these strings. How can I replace all special characters like ， , 。 / " and spaces with - or _

then extract all chinese character with explode() like $str = explode("-",$str); or $str = explode("_",$str); ?

I am currently have a RegEx like this

 if(/^\S[\u0391-\uFFE5 \w]+\S$/.test(value)).....

And I modified it into

 $str = preg_replace("/^\S[\x{0391}-\x{FFE5} \w]+\s+\S$/u", "-", $str);

but it seems it didn't work...

the online exampls: https://www.regex101.com/r/qR8aA6/1

EDIT : my expected output(for the first sting):

firstly it should be replaced into

蘋果-香蕉-橙- or 蘋果_香蕉_橙_

then I can use $str = explode("-",$str); to make them finally become:

Array
    (
     [0] => 蘋果
     [1] => 香蕉
     [2] => 橙
     )

回答1:

Seems like you want something like this,

$txt = <<<EOT
蘋果，香蕉，橙。
榴蓮, 啤梨
鳳爪，排骨，雞排
24個男，2個女，30個老人
EOT;
echo preg_replace('~[^\p{L}\p{N}\n]+~u', '-', $txt);

Output:

蘋果-香蕉-橙-
榴蓮-啤梨
鳳爪-排骨-雞排
24個男-2個女-30個老人

DEMO

Explanation:

\p{L} Matches any kind of letter from any language.
\p{N} matches any kind of numeric character in any script.
\n Matches a newline character.
By putting all inside a negated character class will do the opposite operation.

来源：https://stackoverflow.com/questions/28357638/how-can-i-extract-or-preg-replace-chinese-characters-in-a-string

标签

php

regex

preg-replace