Description:
------------
Hi,

It seems that + operator on arrays seems to be incorrect with Zend Optimizer (tested on v2.5.7 using PHP5.0.2 on CGI/CLI mode rather on unix or windows platforms).

The manual regarding array + operator only talks about adding array *variables*, and not the form in the example above.

Please note that if you assign the value of array(..)+$a into another variable (not $a), then you get the expected result.

-thanks, Eli


Reproduce code:
---------------
<?php
   $a=array('b'=>2,'c'=>3);
   $a=array('a'=>1)+$a;
   var_dump($a);
?>


Expected result:
----------------
array(3) {
  ["a"]=>
  int(1)
  ["b"]=>
  int(2)
  ["c"]=>
  int(3)
}


Actual result:
--------------
array(3) {
  ["b"]=>
  int(2)
  ["c"]=>
  int(3)
  ["a"]=>
  int(1)
}