is this allowed

123

I am trying to access an array element like this;

<?
$test = 2;
echo data[$test];
?>

It does not work when i try it so im not sure if im doing somthing wrong or if its not allowed at all.

Thanks

bogu

Php, array and array functions

Where did u see this approach data[$test] ? Maybe this approach $data[$test] ...

123

thats real stupid of me.

Thanks for that.

I read sum where that you should'nt quote your keys.

does that make any sense.

if so can anyone confirm it or disapprove it

Thanks

bogu

123 wrote:
I read sum where that you should'nt quote your keys.

Where?

Anyway I suggest u to read more about arrays, before making assumptions, and I suggest reading the manual first and after that php articles ...

barand

123 wrote:
thats real stupid of me.
I read sum where that you should'nt quote your keys.

I suggest you dig out the book you read it in then burn it.

You can get away without quoting key values but if you don't quote then then PHP will assume the key is a defined constant. So it then goes to look throught any constant definitions. If it cannot find any defined constant with that name it will now assume it a string value. So if only you had quoted it in the first place, it would all have run a lot quicker.

bradgrafelman

If you're using variables for key names, then no, don't quote them.

If you're just referencing an associative array using a string, then yes, you must quote them, i.e.

$data = array();
$data['key_name'] = 'hi';

The only time you don't need to quote the key name is if you're specifically trying to use a constant, which I doubt 99%-100% if the people that don't quote their keynames are doing. This is such an example:

define('this_is_a_constant', 'key1');

$data = array();
$data['key1'] = 'Hello World!';

echo $data[this_is_a_constant]; // Hello World!