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Re: When do I use {}? [message #169554 is a reply to message #169552]

Fri, 17 September 2010 18:06

matt[1]
Messages: 40
Registered: September 2010

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On Sep 17, 1:44 pm, bruceaj <bruc...@bellsouth.net> wrote:
> 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']}";

This, I hope you realize, is a terrible example because it
demonstrates a tried a true method of allowing SQL injection.

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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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