Alain Williams wrote:
> On Wed, May 28, 2014 at 02:12:32PM +0200, Christoph Becker wrote:
>> Alain Williams wrote:
>>
>>> I am trying to use this to validate input that is supposed to be UTF-8 and to
>>> replace any bad characters with something - '?' would do.
>>>
>>> I have the test program below. No matter what I try to give as an argument to
>>> mb_substitute_character() it always removes the bad input sequence, I would like
>>> to replace it.
>>
>> Have you considered using htmlspecialchars($input, ENT_SUBSTITUTE,
>> 'UTF-8') instead of mb_substitute_character()?
>
> OK-ish -- thanks.
>
> * ENT_SUBSTITUTE is only available from PHP 5.4 - my production machine is PHP 5.3.3 (CentOS)
>
> * It also munges & < > -- but I can undo that with htmlspecialchars_decode()
>
> * I need to replace the Unicode Replacement Character ("\xEF\xBF\xBD") with a '?' (easy)
>
> * If I give it an over long character encoding (I tested "\xC0\xBC") it replaces
> each byte with a '?' - so I get two of them.
>
> It would be nice to get mb_substitute_character() working.
You might be out of luck with PHP 5.3, see <http://3v4l.org/I3mEd>.
--
Christoph M. Becker
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