multibyte

Why is the output of the following statement 3 and not 1? echo mb_strlen("鉑"); Thing is that echo "鉑"; will properly output this sign which is encoded as UTF-8. Make sure you set the proper internal encoding: <?php echo mb_internal_encoding() . '<br />'; echo mb_strlen('鉑', 'utf-8') . '<br />'; echo mb_strlen('鉑') . '<br />'; mb_internal_encoding('utf-8'); echo mb_internal_encoding() . '<br />'; echo mb_strlen('鉑') . '<br />'; // ISO-8859-1 // 1 // 3 // UTF-8 // 1 You will likeliy need to add the character set: echo mb_strlen("鉑","utf-8"); Set the encoding to your mb_strlen function: echo mb

I am trying to use a preg_replace to eliminate the Japanese full-width white space " 　 " from a string input but I end up with a corrupted multi-byte string. I would prefer to preg_replace instead of str_replace. Here is a sample code: $keywords = '　ラメ単色'; $keywords = str_replace(array(' ', '　'), ' ', urldecode($keywords)); // outputs :'ラメ単色' $keywords = preg_replace("@[ 　]@", ' ',urldecode($keywords)); // outputs :'�� ��単色' Anyone has any idea as to why this is so and how to remedy this situation? Add the u flag to your regex. This makes the RegEx engine treat the input string as UTF-8.

How do I get the byte size of a multibyte-character string in Visual C? Is there a function or do I have to count the characters myself? Or, more general, how do I get the right byte size of a TCHAR string? Solution: _tcslen(_T("TCHAR string")) * sizeof(TCHAR) EDIT: I was talking about null-terminated strings only. According to MSDN , _tcslen corresponds to strlen when _MBCS is defined. strlen will return the number of bytes in the string. If you use _tcsclen that corresponds to _mbslen which returns the number of multibyte characters . Also, multibyte strings do not (AFAIK) contain embedded

The explode() function has a correlating multibyte-safe function in mb_split() . I don't see a correlating function for implode() . Does this imply that implode is already safe for multibyte strings? As long as your delimiter and the strings in the array contain only well-formed multibyte sequences there should not be any issues. implode basically is a fancy concatenation operator and I couldn't imagine a scenario where concatenation is not multibyte safe ;) 来源： https://stackoverflow.com/questions/8564967/php-is-the-implode-function-safe-for-multibyte-strings

Will it make any difference or impact on my result, if I use substr() instead of mb_substr() function? As my server does not have support for mb_ functions, I have to replace it with substr() It will impact your script if you work with multi-byte text that you substring from. If this is the case, I higly recommend enabling mb_* functions in your php.ini or do this ini_set("mbstring.func_overload", 2); string substr ( string $string , int $start [, int $length ] ) Returns the portion of string specified by the start and length parameters. string mb_substr ( string $str , int $start [, int

I have the following query in MySQL: SELECT id FROM unicode WHERE `character` = 'a' The table unicode contains each unicode character along with an ID (it's integer encoding value). Since the collation of the table is set to utf8_unicode_ci, I would have expected the above query to only return 97 (the letter 'a'). Instead, it returns 119 rows containing the IDs of many 'a'-like letters: a A Ã ... It seems to be ignoring both case and the multi-byte nature of the characters. Any ideas? As documented under Unicode Character Sets : MySQL implements the xxx_unicode_ci collations according to the

I'm trying to translate parse a RTF formatted message (I need to keep the formatting tags so I can't use the trick where you just paste into a RichTextBox and get the .PlainText out) Take the RTF code for the string a基bমূcΟιd pasted straight into Wordpad: {\rtf1\ansi\ansicpg1252\deff0\deflang2057{\fonttbl{\f0\fnil\fcharset0 Calibri;}{\f1\fswiss\fcharset128 MS PGothic;}{\f2\fnil\fcharset1 Shonar Bangla;}{\f3\fswiss\fcharset161{\*\fname Arial;}Arial Greek;}} {\*\generator Msftedit 5.41.21.2510;}\viewkind4\uc1\pard\sa200\sl276\slmult1\lang9\f0\fs22 a\f1\fs24\'8a\'ee\f0\fs22 b\f2\fs24\u2478?\u2498

When I open a multi-byte file, I get this: If memory serves, Emacs will prompt the User for an encoding if it cannot determine one. When it makes a wrong determination you can use C-x RET f coding RET which will use coding as the coding system for the visited file in the current buffer. Short term, you can revisit the file with an alternate coding system with revert-buffer-with-coding-system (select utf-16le then). Middle term, you can bump the priority of that utf-16le encoding on load with prefer-coding-system . Long term, however, you'd better try to understand why emacs did not pick the