php - How to print the name of a variable and a array?

I'm needding something similar to the code below:

code

$var1='my var 1';

$array1['1']='first position of my array 1';
$array1['2']='second position of my array 1';

echo name($var1);


echo "
";

echo name($array1);

function name($parameter){
...?...
}
?>

screen return

var1
array1

So, I need to write a function that gives me the name of a variable or an array that I pass to it. How can I perform this?

I will use this function on another function to perform some tasks to me...

Answer

As @bfavaretto said,

this worked fine to me:

$var1='my var 1';

$array1['1']='first position of my array 1';
$array1['2']='second position of my array 1';


echo name($var1);

echo "
";

echo name($array1);

function name(&$var, $scope=false, $prefix='unique', $suffix='value'){
    if($scope) $vals = $scope;
    else      $vals = $GLOBALS;

    $old = $var;
    $var = $new = $prefix.rand().$suffix;
    $vname = FALSE;
    foreach($vals as $key => $val) {
      if($val === $new) $vname = $key;
    }
    $var = $old;
    return $vname;
}
?>