hphp/test/slow/inout/tuple/tests/reffy-magic.php

   1 <?hh
   2
   3 function bar($a) {
   4   var_dump($a);
   5   var_dump($GLOBALS['FOO']);
   6 }
   7
   8 function foo(inout $x) {
   9   $x = 20;
  10   bar($x);
  11 }
  12
  13 function main() {
  14   $x = 10;
  15   $GLOBALS['FOO'] =& $x;
  16   bar($x);
  17   foo(&$x);
  18   bar($x);
  19 }
  20
  21 main();