php: Array keys case *insensitive* lookup?

Question

$myArray = array (\'SOmeKeyNAme\' => 7);  

I want $myArray[\'somekeyname\'] to return 7.
Is there a way to do this

Answer 1

I know this is old, but in case anyone else needs a quick easy way to do this without actually changing the original array:

function array_key_i($needle, $haystack){
  $key=array_search(strtolower($search), array_combine(array_keys($array),array_map('strtolower', array_keys($array))));
  return ($key!==false);
}

$array=array('TeSt1'=>'maybe');
$search='test1';

array_key_i($search, $array); // returns true