Re: [PHP-DEV] foreach() for strings

[Reindl Harald]

Am 22.06.2011 15:30, schrieb Gustavo Lopes:
> Em Wed, 22 Jun 2011 13:21:10 +0100, Reindl Harald <h.rei...@thelounge.net> 
> escreveu:
> 
>> Am 22.06.2011 14:14, schrieb Gustavo Lopes:
>>> It's actually 3 lines:
>>>
>>> function str_is_utf8($str) {
>>>     return $str == "" || htmlspecialchars($str, 0, "UTF-8");
>>> }
>>
>>
>> WTF should this do?
>> this won't return boolean
>>
> 
> The reason it works is that
> 1) || coerces the operands into booleans (if they get to be evaluated)
> 2) htmlspecialchars returns "" on bad input sequence
> 3) (bool) "" === false
> 
> But even if you didn't know these things, you should have bothered to at 
> least test it 
> before sending this response

and why this will not return true if $str is ISO-8859-1?

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