On Wed, Jul 21, 2010 at 1:17 PM, Dotan Cohen <dotanco...@gmail.com> wrote:

> On Wed, Jul 21, 2010 at 22:07, Daniel Brown <danbr...@php.net> wrote:
> >    That's just basic variable parsing on the PHP side, it's not
> > MySQL-specific.  Check out the "variable parsing" heading at
> > http://php.net/string .
> >
>
> Thanks, Daniel. It seems unnecessary, then, as the quote character is
> not a valid character in a variable name.


the single quote is not part of the variable name in the example you posted
and further more the curly braces won't be evaluated as part of a variable
name unless the string expression is wrapped in double quotes (which probly
also evaluates in heredocs & nowdocs).  in this case, i would say you are
right, the curly braces seem gratuitous; again as dan suggested, read the
docs for clarification ...

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

-nathan

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