[SOLVED] Getting information from an array

[trink]

I've got a problem with an array, and I'm not sure exactly why my script isn't working.

I'm pretty new with arrays, so that could be the reason right there.

My script look like this

 

function getconfig($getkey){
return $currentconfig[$getkey];
}

 

In the array, the online key is set to 1.

I am trying to get the 'online' key, so I use getconfig('online'); but it doesn't return anything.

If I use print $currentconfig['online']; it prints "1".

 

Any tips?

 

Thanks a lot.

[teng84]

no value for this $currentconfig[$getkey];  so it wont return anything

 

should be $currentconfig[$getkey]='test';

 

ok ill explain

 

$currentconfig <--your array

[$getkey]<--your index

 

'test'<-- the value of that array on that specific index

 

[cooldude832]

why do you need a function if you are just gonna say

$value = getconfig($key);

you can easily just say

$value = $myarray[$key];

Same thing and saves you a step, now if that is an undefined key then you have an issue, so maybe the function might help you by doing something like

function getconfig($key){

if(!empty($myarray[$key])){

return $myarray[$key];

}

else{

return FALSE;

}

 

[btherl]

Try this function:

 

function getconfig($getkey){
  global $currentconfig;
  return $currentconfig[$getkey];
}

 

The problem may be that global variables are not available by default within a function

[trink]

global $currentconfig; worked.  Thanks!

[trink]

Alright, new problem.

I've done all that and whatnot, and changed the name to $_CONFIG.

So it looks like this.

 

$_CONFIG=array();
global $_CONFIG;
$loadconfig=@file('config.php');
foreach($loadconfig as $config){
$configkey=substr(trim($config),0,strpos($config,'='));
$configval=substr(trim($config),(strpos($config,'=')+1));
$_CONFIG[$configkey]=$configval;
}

 

When I run it though a foreach or a while list each loop, it says its not an array...

When I get data from it, such as $_CONFIG['online'], or when I print_r it, it rerturns data like an array.

The foreach loop is as such:

 

foreach($_CONFIG as $configchangekey=>$configchangevalue){
//stuff goes here
}

 

Any tips on this problem?

 

Thanks

[teng84]

are you sure this line is successful $loadconfig=@file('config.php');

remove the @ and see if theres an error

[trink]

Yes, it loads correctly, because when I check the array with print $_CONFIG['online'] it returns 1.  The problem lies somewhere else, is maybe "global $_CONFIG;" setting it as a non-array variable?

[btherl]

Please post your full code.  If your code is too large, post a smaller script that replicates the problem.

[trink]

$_CONFIG=array();
global $_CONFIG;
$loadconfig=@file('config.php');
foreach($loadconfig as $config){
$configkey=substr(trim($config),0,strpos($config,'='));
$configval=substr(trim($config),(strpos($config,'=')+1));
$_CONFIG[$configkey]=$configval;
}
function getconfig($getkey){
return $_CONFIG[$getkey];
}
function changeconfig($changekey,$changevalue){
foreach($_CONFIG as $configchangekey=>$configchangevalue){
	if ($configchangekey == $changekey){
		$changeconfig.=$configchangekey.'='.$changevalue.chr(10);
	}else{
		$changeconfig.=$configchangekey.'='.$configchangevalue.chr(10);
	}
}
fwrite($changewriteconfig=fopen('config.php','w'),trim($changeconfig)) && fclose($changewriteconfig);
}
if(!$_CONFIG['online']){
die("Not online.");
}

[btherl]

You must put the "global $_CONFIG"; inside EVERY function which accesses $_CONFIG.  This is different behaviour from some other languages.

[trink]

Alright, that worked, thanks a lot!