php-src/ext/standard/tests/strings/bug22224.phpt

--TEST--
Bug #22224 (implode changes object references in array)
--INI--
error_reporting=0
--FILE--
<?php
class foo
{
	function __toString()
	{
		return "Object";
	}
}


$a = new foo();

$arr = array(0=>&$a, 1=>&$a);
var_dump(implode(",",$arr));
var_dump($arr)
?>
--EXPECTF--
string(13) "Object,Object"
array(2) {
  [0]=>
  &object(foo)#%d (0) {
  }
  [1]=>
  &object(foo)#%d (0) {
  }
}