ID: 47033
User updated by: lunter at interia dot pl
Reported By: lunter at interia dot pl
Status: Bogus
Bug Type: Unicode Engine related
Operating System: all
PHP Version: 6CVS-2009-01-08 (snap)
New Comment:
Johannes, false.
Try this:
<?
$s=chr(946);
print(strlen($s));
print('<br>');
$b=unicode_encode($s,'iso-8859-1');
print(strlen($b));
?>
unicode chr(946) in binary encoding has len = 2 bytes, not 1
Previous Comments:
------------------------------------------------------------------------
[2009-01-11 22:13:45] johan...@php.net
We have unicode_encode() / unicode_decode().
------------------------------------------------------------------------
[2009-01-08 07:42:45] lunter at interia dot pl
Description:
------------
converting binary<->string without charset translating
Two functions for converting binary<->string without translating
charset needed.
It is very usefull because binary data can consists utf-8 substring,
you need to convert to string type.
Also when you have to see binary representation of utf-8 string, or
operating on it as binaries.
Example 1:
You have (binary)$b. It consists two bytes: 11001110 10110010
Its length in binary representation is two.
It is also valid one-length UTF-8 char(946) (greek small letter beta)
How to conver it ($b) into one-char UTF-8 string??
When we try $u=(string)$b, it gives two-char UTF-8 string.
Example 2:
You have (string)$u UTF-8 one-char string. It consists chr(946) (greek
small letter beta)
Now You have to see two bytes binary representation of this (11001110
10110010).
There is no way to convert it without charset translation...
Reproduce code:
---------------
;;;;;;;;;;;;;;;;;;;;
; Unicode settings ;
;;;;;;;;;;;;;;;;;;;;
unicode.semantics = off
unicode.runtime_encoding = iso-8859-1
unicode.script_encoding = utf-8
unicode.output_encoding = utf-8
unicode.from_error_mode = U_INVALID_SUBSTITUTE
unicode.from_error_subst_char = 3f
Expected result:
----------------
way to converting binary<->string without charset translating
Actual result:
--------------
no way to converting binary<->string without charset translating
------------------------------------------------------------------------
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Edit this bug report at http://bugs.php.net/?id=47033&edit=1
