Pass by reference (5.1.1 vs 5.1.2)

Hello, I've upgraded from 5.1.1 to 5.1.2 and discovered the following unexpected difference. Best shown by example. <? function getArray(&$arr) {

       $arr[] = 12;

} getArray($p = array()); print_r($p); ?> In php 5.1.1, the $p is passed correctly as reference and so returns with the value 12 in its first element. I regard this as correct behaviour. In php 5.1.2, the $p is passed by value. So on return, $p is still empty! This can be fixed as follows: $p = array(); getArray($p); The following example works, as expected, in both 5.1.1 and 5.1.2. <? class A {

       public $i = 9;

} function doAmend(A &$a) // & not required because class instance passed by reference by default {

       $a->i += 30;

}

       doAmend($b = new A);
       print_r($b);      // this prints the value of member i as 39 as expected.

?>