<?php
  //line 681 ...
  $array = array(array(7,8,9),1,2,3,array(4,5,6));
$arrayIterator = new ArrayIterator($array);
try {
$test = new CachingIterator($arrayIterator, 0);
$test = new CachingIterator($arrayIterator, 1);
$test = new CachingIterator($arrayIterator, 2);
$test = new CachingIterator($arrayIterator, 3); // this throws an exception
} catch (InvalidArgumentException $e){
  print  $e->getMessage() . "\n";
}


?>
===DONE===
