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Re: When do I use {}? [message #169530 is a reply to message #169528]

Fri, 17 September 2010 03:47

Jerry Stuckle
Messages: 2598
Registered: September 2010

Karma:

Senior Member

On 9/16/2010 10:13 PM, bruceaj wrote:
> I have code samples where some variables are wrapped in {} (curly
> brackets.) My problem is that I can find anything in the documentation
> when they can be uses.
>
> Can someone tell me or point me to some documentation??
>
> Thanks...
>
> Bruce

You use them when you want to evaluate non-simple variables (i.e. array
elements) in a double-quoted string, such as:

$a = 'World"; // init variable
$b = array('Hello', 'World');

echo "Hello $a"; // Works - $a is a simple variable
echo "Hello {$a}"; // Also works - and may be clearer

echo "Hello $b[1]"; // Does NOT work - $b is an array
echo "Hello {$b[1]}"; // This one works
echo "{$b[0]} {$b[1]}"; // Also works

--
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Jerry Stuckle
JDS Computer Training Corp.
jstucklex(at)attglobal(dot)net
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[Message index]

		When do I use {}? By: bruceaj on Fri, 17 September 2010 02:13
		Re: When do I use {}? By: Marious Barrier on Fri, 17 September 2010 02:57
		Re: When do I use {}? By: The Natural Philosoph on Fri, 17 September 2010 09:28
		Re: When do I use {}? By: Erwin Moller on Fri, 17 September 2010 09:36
		Re: When do I use {}? By: Jerry Stuckle on Fri, 17 September 2010 11:29
		Re: When do I use {}? By: Captain Paralytic on Fri, 17 September 2010 09:53
		Re: When do I use {}? By: Marious Barrier on Fri, 17 September 2010 16:40
		Re: When do I use {}? By: Denis McMahon on Fri, 17 September 2010 13:31
		Re: When do I use {}? By: Marious Barrier on Fri, 17 September 2010 16:39
		Re: When do I use {}? By: Jerry Stuckle on Fri, 17 September 2010 03:47
		Re: When do I use {}? By: bruceaj on Fri, 17 September 2010 17:44
		Re: When do I use {}? By: matt[1] on Fri, 17 September 2010 18:06
		Re: When do I use {}? By: Michael Fesser on Fri, 17 September 2010 20:51
		Re: When do I use {}? By: Chuck Anderson on Fri, 17 September 2010 19:37
		Re: When do I use {}? By: Michael Fesser on Fri, 17 September 2010 13:13
		Re: When do I use {}? By: bruceaj on Fri, 17 September 2010 17:48

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