1--TEST--
2Tests that array unshift code is correctly dealing with copy on write and splitting on reference
3--FILE--
4<?php
5 $a=array();
6 $b=1;
7 $c=&$b;
8 array_unshift ($a,$b);
9 $b=2;
10 var_dump ($a);
11?>
12--EXPECT--
13array(1) {
14 [0]=>
15 int(1)
16}
17
