--TEST--
Bug #31213 (Sideeffects caused by bug #29493)
--SKIPIF--
<?php
if (true) die("skip AOT does not support extract()");
?>

--FILE--
<?php
function test($use_extract)
{
    $a = 1;
    $b = 1;
    $arr = array('_a' => $a, '_b' => &$b);
    var_dump($a, $b);
    if ($use_extract) {
        extract($arr, EXTR_REFS);
    } else {
        $_a =& $arr['_a'];
        $_b =& $arr['_b'];
    }
    $_a++;
    $_b++;
    var_dump($a, $b, $_a, $_b, $arr);
}
function main()
{
    test(false);
    test(true);
}
?>
--EXPECT--
int(1)
int(1)
int(1)
int(2)
int(2)
int(2)
array(2) {
  ["_a"]=>
  &int(2)
  ["_b"]=>
  &int(2)
}
int(1)
int(1)
int(1)
int(2)
int(2)
int(2)
array(2) {
  ["_a"]=>
  &int(2)
  ["_b"]=>
  &int(2)
}