create superglobal variables in php?

Static class variables can be referenced globally, e.g.:

class myGlobals {

   static $myVariable;

}

function a() {

  print myGlobals::$myVariable;

}

On Mac OS X environment variables available in Terminal and for the normal applications can be different, check the related question for the solution how to make them similar.

Note that this solution will not work on Mountain Lion (10.8).

You have some options here :

Create them global (not best practice ) :

for(var i = 0; i < list.lenght; i++){ 
  window['counter' + i] = 0;   // create counter1, counter2,...)
}

Use object :

var scope = {};
for(var i = 0; i < list.lenght; i++){ 
  scope['counter' + i] = 0;   // create scope.counter1, scope.counter2,...)
}

Use Object with with keyword

var scope = {};
for(var i = 0; i < list.lenght; i++){ 
  scope['counter' + i] = 0;   // create scope.counter1, scope.counter2,...)
}
with(scope){
 // here you can acesess keys in the scope object like them variable on the function scope
 counter0++
}

Use plain old Array

var scope = new Array(list.length);