hphp/test/zend/good/ext/standard/tests/array/uasort_object1.php

   1 <?hh
   2 /* Prototype  : bool uasort(array $array_arg, string $cmp_function)
   3  * Description: Sort an array with a user-defined comparison function and maintain index association
   4  * Source code: ext/standard/array.c
   5 */
   6
   7 /*
   8  * Testing uasort() function with the array of objects
   9  * array of objects which has only one member variable & more than one member variables
  10  */
  11
  12 // comparison function
  13 /* Prototype : int cmp(mixed $value1, mixed $value2)
  14  * Parameters : $value1 and $value2 - values to be compared
  15  * Return value : 0 - if both values are same
  16  *                1 - if value1 is greater than value2
  17  *               -1 - if value1 is less than value3
  18  * Description : compares value1 and value2
  19  */
  20 function simple_cmp($value1, $value2)
  21 {
  22   if($value1 == $value2) {
  23     return 0;
  24   }
  25   else if($value1 > $value2) {
  26     return 1;
  27   }
  28   else
  29     return -1;
  30 }
  31
  32 // comparison function for SimpleClass2 objects which has more than one members
  33 function multiple_cmp($value1, $value2)
  34 {
  35   if($value1->getValue() == $value2->getValue())
  36     return 0;
  37   else if($value1->getValue() > $value2->getValue())
  38     return 1;
  39   else
  40     return -1;
  41 }
  42
  43 // Simple class with single member variable
  44 class SimpleClass1
  45 {
  46   private $int_value;
  47
  48   public function __construct($value) {
  49     $this->int_value = $value;
  50   }
  51 }
  52
  53 // Simple class with more than one member variables
  54 class SimpleClass2
  55 {
  56   private $int_value;
  57   protected $float_value;
  58   public $string_value;
  59   public function __construct($int, $float, $str) {
  60     $this->int_value = $int;
  61     $this->float_value = $float;
  62     $this->string_value = $str;
  63   }
  64   public function getValue() {
  65     return $this->int_value;
  66   }
  67 }
  68 <<__EntryPoint>> function main(): void {
  69 echo "*** Testing uasort() : object functionality ***\n";
  70
  71 // array of SimpleClass objects with only one member
  72 $array_arg = array(
  73   0 => new SimpleClass1(10),
  74   1 => new SimpleClass1(1),
  75   2 => new SimpleClass1(100),
  76   3 => new SimpleClass1(50)
  77 );
  78 var_dump( uasort(inout $array_arg, fun('simple_cmp')) );
  79 var_dump($array_arg);
  80
  81 // array of SimpleClass objects having more than one members
  82 $array_arg = array(
  83   0 => new SimpleClass2(2, 3.4, "mango"),
  84   1 => new SimpleClass2(10, 1.2, "apple"),
  85   2 => new SimpleClass2(5, 2.5, "orange"),
  86 );
  87 var_dump( uasort(inout $array_arg, fun('multiple_cmp')) );
  88 var_dump($array_arg);
  89
  90 echo "Done";
  91 }