hphp/test/slow/yield/clone/g12.php

   1 <?php
   2
   3 function foo($a, &$b) {
   4   $x = $a;
   5   $y =& $b;
   6   unset($a);
   7   unset($b);
   8   $x += 10;
   9   $y += 100;
  10   yield $x * 10000 + $y;
  11   $x += 20;
  12   $y += 200;
  13   yield $x * 10000 + $y;
  14   $x += 30;
  15   $y += 300;
  16   yield $x * 10000 + $y;
  17 }
  18
  19 <<__EntryPoint>>
  20 function main_g12() {
  21 $a1 = 1;
  22 $a2 = -999999999;
  23 $x = foo($a1, &$a2);
  24 $a2 = 2;
  25 $x->rewind();
  26 $y1 = clone $x;
  27 $y2 = clone $x;
  28 for ($y1->next(); $y1->valid(); $y1->next()) {
  29   $v = $y1->current();
  30   $v1 = (int)($v / 10000);
  31   $v2 = $v % 10000;
  32   echo $v1 . " " . $v2 . "\n";
  33   ++$a2;
  34 }
  35 echo "--------\n";
  36 var_dump($a1, $a2);
  37 echo "========\n";
  38 for ($y2->next(); $y2->valid(); $y2->next()) {
  39   $v = $y2->current();
  40   $v1 = (int)($v / 10000);
  41   $v2 = $v % 10000;
  42   echo $v1 . " " . $v2 . "\n";
  43   ++$a2;
  44 }
  45 echo "--------\n";
  46 var_dump($a1, $a2);
  47 echo "========\n";
  48 for ($x->next(); $x->valid(); $x->next()) {
  49   $v = $x->current();
  50   $v1 = (int)($v / 10000);
  51   $v2 = $v % 10000;
  52   echo $v1 . " " . $v2 . "\n";
  53   ++$a2;
  54 }
  55 echo "--------\n";
  56 var_dump($a1, $a2);
  57 }