rewbs

<?php$ao = new ArrayObject();$swapIn = array();$ao->exchangeArray($swapIn);$ao['a'] = 'This affects $swapIn';$swapIn['b'] = 'This forces $swapIn to split from its copy-on-write references';$ao['c'] = 'This no longer affects $swapIn';var_dump($swapIn, $ao);//Actual output on PHP 5.3.0-dev (cli) (built: Jul 28 2008 00:21:59) :////array(2) {//  ["a"]=>//  string(20) "This affects $swapIn"//  ["b"]=>//  string(62) "This forces $swapIn to split from its copy-on-write references"//}//object(ArrayObject)#1 (1) {//  ["storage":"ArrayObject":private]=>//  array(2) {//    ["a"]=>//    string(20) "This affects $swapIn"//    ["c"]=>//    string(30) "This no longer affects $swapIn"//  }//}?>