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Re: When do I use {}? [message #169552 is a reply to message #169530]

Fri, 17 September 2010 17:44

bruceaj
Messages: 30
Registered: September 2010

Karma:

Member

On Sep 16, 11:47 pm, Jerry Stuckle <jstuck...@attglobal.net> wrote:
> 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
>
> --
> ==================
> Remove the "x" from my email address
> Jerry Stuckle
> JDS Computer Training Corp.
> jstuck...@attglobal.net
> ==================

Sorry I didn't explain the problem more clearly. Yes, this what I was
asking about curly brackets. I'm aware of curly bracket when wrapping
code but I can't seem to find the explanation when using them to wrap
array elements. That is where I have seen them used in code examples,
likc "SELECT a FROM b WHERE t={$_GET['x']}";

Your explanation meets this example. Thanks....

Bruce

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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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