CODEWITHSUNDEEP
phputf-8characterturkish
Mehmet Emre Özer
Mehmet Emre Özer

Reputation: 81

Turkish character bug in mb_strtoupper function of PHP

My question is rather explanation for the Turkish colleges who have troubles with our funny characters.

It is for sure PHP 5 has a bug by capitalizing and also therefore collating them.

echo mb_strtoupper('Turkish capitals for ğ, i, ı, ş in uppercase', 'UTF-8');

gives the result: "TURKISH CAPITALS FOR Ğ, I, I, Ş IN UPPERCASE".

But it is wrong. The correct output should be "TURKİSH CAPİTALS FOR Ğ, İ, I, Ş İN UPPERCASE"

The problem in our language we have "i" in capitals "İ" and "ı" in capitals "I".

I guess you see the problem.

Whom shall we report this bug in PHP, does anybody know? Please inform and if you write a subroutine to solve this problem temporarily, it will be appreciated. Thanks ahead.

Upvotes: 3

Views: 6084

Answers (3)

user3942918
user3942918

Reputation: 26385

mb_strtoupper is not locale aware. For handling these sorts of transformations you can use a Transliterator which is, e.g.:

echo Transliterator::create("tr-Upper")
    ->transliterate('Turkish capitals for ğ, i, ı, ş in uppercase');

outputs:

TURKİSH CAPİTALS FOR Ğ, İ, I, Ş İN UPPERCASE

Upvotes: 11

aidinMC
aidinMC

Reputation: 1426

you can write your own function for do this:

function trkish_upper($str){
    $find = array('i', 'ı'); //any turkish chars
    $replace = array('İ','I');
    $new = str_replace($find,$replace,$str);
    return $new;
}

Upvotes: 0

Alessandro Lodi
Alessandro Lodi

Reputation: 553

Can you try this:

function pre_up($str){
    $str = str_replace('i', 'İ', $str);
    $str = str_replace('ı', 'I', $str);
    return $str;
}
echo mb_strtoupper(pre_up('Turkish capitals for ğ, i, ı, ş in uppercase'), 'UTF-8');

I don't know Turkish, is it correct?

Output

TURKİSH CAPİTALS FOR Ğ, İ, I, Ş İN UPPERCASE

Upvotes: 7

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