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Bug #69256 mb_split() cannot divide into char by char
Submitted: 2015-03-18 15:57 UTC Modified: 2016-08-20 10:49 UTC
From: ryosuke_i_628 at yahoo dot co dot jp Assigned:
Status: Open Package: mbstring related
PHP Version: Irrelevant OS:
Private report: No CVE-ID: None
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 [2015-03-18 15:57 UTC] ryosuke_i_628 at yahoo dot co dot jp
Description:
------------
mb_split() cannot divide into char by char using the expression '(?<!\A)(?!\z)'.

Test script:
---------------
$str = "あいうえお";
mb_regex_encoding('UTF-8');
print_r([
    'PCRE' => preg_split('/(?<!\A)(?!\z)/u', $str),
    '鬼車' => mb_split('(?<!\A)(?!\z)', $str)
]);

Expected result:
----------------
Array
(
    [PCRE] => Array
        (
            [0] => あ
            [1] => い
            [2] => う
            [3] => え
            [4] => お
        )

    [鬼車] => Array
        (
            [0] => あ
            [1] => い
            [2] => う
            [3] => え
            [4] => お
        )

)
[Finished in 0.5s]

Actual result:
--------------
Array
(
    [PCRE] => Array
        (
            [0] => あ
            [1] => い
            [2] => う
            [3] => え
            [4] => お
        )

    [鬼車] => Array
        (
            [0] => あ
            [1] => いうえお
        )

)
[Finished in 0.5s]

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 [2016-08-20 10:49 UTC] cmb@php.net
-Package: Regexps related +Package: mbstring related
 [2016-08-20 10:49 UTC] cmb@php.net
I suspect that has the same cause as bug #69433.
 
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