On Mon Jun 20 09:11 AM, Lee davis wrote:
>
> Could we also use current(), next() and key() for iteration of strings?
>
> $string = 'string';
> while ($char = current($string))
> {
> echo key($string) // Would output the offset position I assume 0,1,2
> etc??
> echo $char // outputs each letter of string
> next($string);
> }
>
Hopefully it can be supported without sacrificing too much performance
Like others mentioned, it seems important to distinguish between binary/byte
and text iteration.
$string = new ByteIterator('string é');
foreach($string as $i => $byte)
...
$string = new TextIterator('string é');
foreach($string as $i => $char)
...
When most developers get a 'string' from a database, my hunch is they assume
they would be iterating over the 'characters' (utf8, iso.. encoding) and not
individual bytes.
So +1 to string iteration as long as there's byte iteration and some plan
for text iteration / by character (with icu or not).
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