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Posted by Rik on 04/24/07 19:04
Christoph Burschka wrote:
> Christoph Burschka schrieb:
>> Boris Savc schrieb:
>>
>>> Sorry for confuzing subject, but that's the thing I'm trying to
>>> achieve. For example:
>>>
>>> $a = "Hello";
>>> $b = 1;
>>>
>>> I want to change the name of $a to $a1 where 1 is value of variable $b!
>>>
>>> Thanks for all the help,
>>> Boris
>>>
>>
>> A brief note: Something tells me you should take a programming class
>> in a real language. PHP lets you do things no sane programmer would,
>> so if you get used to, say, Java first, you won't want to "rename
>> variables" or use strings as variable names, but follow good practices
>> and use, for example, arrays.
>>
>> But since you're asking, and since it's possible:
>>
>>
>> Code:
>>
>> $a = "Hello";
>> $b = 1;
>> $newname="$a$b";
>> $$newname=$a;
>> print $a1;
>> --------------------------
>>
>> Will output:
>>
>> Hello
>
> Correction: $newname="$a$b"; is wrong, that would make the new variable
> $Hello1. It should, of course, be $newname="a$b" (no $ before a), so the
> new variable will be $a1.
Well, simpler would be:
${'a'.$b} = 'bar'; //(or .. = $a in this case)
Something tells me the OP should use an array though....
$a = 'foo';
$b = 1;
$c[$b] = $a; //allthough you really should initialise it with $c =
array(); or $c = array( $b => $a);
Don't try to use $a[$b] = $a; though, that obviously will result in $a
== 'ffo';
Keep in mind that the naming of variables has absolutely nothing to do
with your program, so going out of your way to name that in some scheme
is often wasted time. The only thing they do is help you and your fellow
coders to identity their meaning. PHP itself could care less.
--
Rik Wasmus
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