[dokuwiki] Re: UTF-8 library (@harry)

Hi Andreas,

That someone is partly correct and I did write
http://www.phpwact.org/php/i18n/utf-8.

explode() for example I initially implemented (which is why you have)
and only later figured out it's not needed (assuming well formed
UTF-8) - think I told you in fact, but as part of a bigger email
exchange we were having at the time. Specifically;


- substr_replace()


Wrong - this you do need to re implement because of the third and
fourth arguments (start, length) - for the native PHP function these
integers represent a number of bytes, not characters.


- explode()


Right - you don't need to reimplement


- str_replace()


Right - you don't need to reimplement


- ltrim()
- rtrim()
- trim()


You only need to re-implement if you are supplying the 2nd charlist
optional arg _and_ it contains UTF-8 characters.

Hope that helps.
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