Posted by Ian Hobson on 09/07/07 23:08

Kenoli wrote:

>
> I have never been able to derive a consistent rule for either of these
> two constructs.
>
> Does anyone know the rules here for when one or the other is required
> or not allowed?
>

Hi Kenoli,

It is explained very well in the manual - with examples.

The key part about curly braces is here.

http://www.php.net/manual/en/language.types.string.php#language.types.string.parsing.complex

Regards

Ian

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