/hphp/test/slow/dynamic_variables/1159.php

 1<?php
 2
 3function foo($a) {
 4  while ($a--) {
 5    if (!$a) {
 6      var_dump(compact('x', 'y'));
 7    }
 8    $x = $a;
 9    $y = $a * $a;
10  }
11}
12foo(4);