How to split Chinese characters in PHP?

Question

I need some help regarding how to split Chinese characters mixed with English words and numbers in PHP.

For example, if I read

FrontPage 2000中文版應用大全
         


        

Answer 1

With this code you can make chinese text (utf8) to wrap at the end of the line so that it is still readable

print_r(preg_match_all('/([\w]+)|(.)/u', $str, $matches));
$arr_result = array();

foreach ($matches[0] as $key => $val) {
    $arr_result[]=$val;
    $arr_result[]="​"; //add Zero-Width Space
} 
foreach ($arr_result as $key => $val) {
    $out .= $val;
} 
return $out;

Answer 2

Assuming you are using UTF-8 (or you can convert it to UTF-8 using Iconv or some other tools), then using the u modifier (doc: http://www.php.net/manual/en/reference.pcre.pattern.modifiers.php )

<?
    $s = "FrontPage 2000中文版應用大全";
    print_r(preg_match_all('/./u', $s, $matches));
    echo "\n";
    print_r($matches);
?>

will give

21
Array
(
    [0] => Array
        (
            [0] => F
            [1] => r
            [2] => o
            [3] => n
            [4] => t
            [5] => P
            [6] => a
            [7] => g
            [8] => e
            [9] =>  
            [10] => 2
            [11] => 0
            [12] => 0
            [13] => 0
            [14] => 中
            [15] => 文
            [16] => 版
            [17] => 應
            [18] => 用
            [19] => 大
            [20] => 全
        )

)

Note that my source code is stored in a file encoded in UTF-8 also, for the $s to contain those characters.

The following will match alphanumeric as a group:

<?
$s = "FrontPage 2000中文版應用大全";
print_r(preg_match_all('/(\w+)|(.)/u', $s, $matches));
echo "\n";
print_r($matches[0]);
?>

result:

10
Array
(
    [0] => FrontPage
    [1] =>  
    [2] => 2000
    [3] => 中
    [4] => 文
    [5] => 版
    [6] => 應
    [7] => 用
    [8] => 大
    [9] => 全
)

Answer 3

    /**
     * Reference: http://www.regular-expressions.info/unicode.html
     * Korean: Hangul
     * CJK: Han
     * Japanese: Hiragana, Katakana
     * Flag u required
     */

    preg_match_all(
        '/\p{Hangul}|\p{Hiragana}|\p{Han}|\p{Katakana}|(\p{Latin}+)|(\p{Cyrillic}+)/u',
        $str,
        $result
    );

This one is working if you are using PHP 7.0 too.

This one is just not working. I regret I have upvoted a non-working solution....

<?
    $s = "FrontPage 2000中文版應用大全";
    print_r(preg_match_all('/(\w+)|(.)/u', $s, $matches));
    echo "\n";
    print_r($matches[0]);
?>