hphp/test/quick/recursive-unset.php

   1 <?hh
   2
   3 error_reporting(-1);
   4
   5 //////////////////////////////////////////////////////////////////////
   6
   7 class Foo {
   8   public function __unset($name) {
   9     var_dump($name);
  10     if ($name != 'bar') unset($this->bar);
  11   }
  12 }
  13
  14 function main1() {
  15   $f = new Foo;
  16   unset($f->foo);
  17 }
  18
  19 //////////////////////////////////////////////////////////////////////
  20
  21 class Foo2 {
  22   public function __unset($name) {
  23     var_dump($name);
  24     unset($this->foo);
  25   }
  26 }
  27
  28 function main2() {
  29   $f = new Foo2;
  30   unset($f->bar);
  31 }
  32
  33 //////////////////////////////////////////////////////////////////////
  34
  35 class CaseFoo {
  36   public function __unset($name) {
  37     var_dump($name);
  38     if ($name === 'bar') { unset($this->Bar); return; }
  39     if ($name === 'Bar') { unset($this->foo); return; }
  40     if ($name === 'foo') { unset($this->bar); return; }
  41     var_dump("shouldn't get here");
  42   }
  43 }
  44
  45 function main3() {
  46   $f = new CaseFoo;
  47   unset($f->bar);
  48 }
  49
  50 //////////////////////////////////////////////////////////////////////
  51
  52 main1();
  53 echo "--\n";
  54 main2();
  55 echo "--\n";
  56 main3();
  57 echo "--\n";