Var error?

Code:

16:46:23 [CRITICAL] Unhandled exception executing command '**' in hg: Undefined variable: worldsel

Here is the code:

PHP:

$worldsel = array_mt_rand($wconfig);
}
$this->getServer()->broadcastMessage("****** *****! World: ".$worldsel."!!");

What is the problem?

$rand = array_rand($values, 10);
or
$a = mt_rand(1, count($one));
$get = $one[$a];
or
$k = array_rand($array);
$v = $array[$k]

this is what i found on google...

What is the code above? Is it an if? If the if condition is false, $worldsel would not be defined.

Sorry for not placing the full code above. It is a if and the condition is false.

So if the condition is false, it won't initialize your $worldsel variable. What do you expect $worldsel to be if the condition is false?