hphp/test/quick/class_implements.php

   1 <?hh
   2 interface IA {}
   3 interface IB {}
   4
   5 class Base implements IA, IB {}
   6 class Derived extends Base implements IA {}
   7
   8 interface IC {}
   9 class DerivedDerived extends Derived implements IC {}
  10
  11 interface ID extends IA {}
  12 interface IE extends ID {}
  13 interface IG extends IE, IB {}
  14
  15 // IE, ID, IA
  16 class LotsOfInterfaces implements IE {}
  17
  18 // IG, IE, ID, IA, IB
  19 class MostOfTheInterfaces implements IG {}
  20
  21 // literally all of them. literally.
  22 class AllTheInterfaces extends MostOfTheInterfaces implements IC {}
  23 <<__EntryPoint>> function main(): void {
  24 echo "interfaces of Base:\n";
  25 $x = class_implements('Base');
  26 ksort(inout $x);
  27 var_dump($x);
  28 echo "\ninterfaces of Derived:\n";
  29 $x = class_implements('Derived');
  30 ksort(inout $x);
  31 var_dump($x);
  32 echo "\ninterfaces of DerivedDerived:\n";
  33 $x = class_implements('DerivedDerived');
  34 ksort(inout $x);
  35 var_dump($x);
  36 echo "\ninterfaces of LotsOfInterfaces:\n";
  37 $x = class_implements('LotsOfInterfaces');
  38 ksort(inout $x);
  39 var_dump($x);
  40 echo "\ninterfaces of MostOfTheInterfaces:\n";
  41 $x = class_implements('MostOfTheInterfaces');
  42 ksort(inout $x);
  43 var_dump($x);
  44 echo "\ninterfaces of AllTheInterfaces:\n";
  45 $x = class_implements('AllTheInterfaces');
  46 ksort(inout $x);
  47 var_dump($x);
  48 }