hphp/test/zend/bad/ext-standard-general_functions/debug_zval_dump_o.php

   1 <?php
   2 /* Prototype: void debug_zval_dump ( mixed $variable );
   3    Description: Dumps a string representation of an internal zend value to output.
   4 */
   5
   6 /* Prototype: void zval_dump( $value );
   7    Description: use debug_zval_dump() to display the objects and its
   8                 reference count */
   9 function zval_dump( $values ) {
  10   $counter = 1;
  11   foreach( $values as $value ) {
  12     echo "-- Iteration $counter --\n";
  13     debug_zval_dump( $value );
  14     $counter++;
  15   }
  16 }
  17
  18 /* checking on objects type */
  19 echo "*** Testing debug_zval_dump() on objects ***\n";
  20 class object_class {
  21   var $value1 = 1;
  22   private $value2 = 10;
  23   protected $value3 = 20;
  24   public $value4 = 30;
  25
  26   private function foo1() {
  27         echo "function foo1\n";
  28   }
  29   protected function foo2() {
  30         echo "function foo2\n";
  31   }
  32   public function foo3() {
  33         echo "function foo3\n";
  34   }
  35   public $array_var  = array( "key1" => 1, "key2 " => 3);
  36
  37   function object_class () {
  38       $this->value1 = 5;
  39       $this->object_class1 = $this;
  40   }
  41 }
  42
  43 class no_member_class{
  44 //no members
  45 }
  46
  47 /* class with member as object of other class */
  48 class contains_object_class
  49 {
  50    var       $p = 30;
  51    protected $p1 = 40;
  52    private   $p2 = 50;
  53    var       $class_object1;
  54    public    $class_object2;
  55    private   $class_object3;
  56    protected $class_object4;
  57    var       $no_member_class_object;
  58
  59    public function func() {
  60      echo "func() is called \n";
  61    }
  62
  63    function contains_object_class () {
  64      $this->class_object1 = new object_class();
  65      $this->class_object2 = new object_class();
  66      $this->class_object3 = $this->class_object1;
  67      $this->class_object4 = $this->class_object2;
  68      $this->no_member_class_object = new no_member_class();
  69      $this->class_object5 = $this;   //recursive reference
  70    }
  71 }
  72
  73 /* creating new object $obj */
  74 $obj = new contains_object_class();
  75 $obj1 = & $obj;  //object $obj1 references object $obj
  76 $obj2 = & $obj;
  77 $obj3 = & $obj2;
  78
  79 /* object which is unset */
  80 $unset_obj = new object_class();
  81 unset($unset_obj);
  82
  83 $objects = array (
  84   new object_class,
  85   new no_member_class,
  86   $obj,
  87   $obj->class_object1,
  88   $obj->class_object2,
  89   $obj->no_member_class_object,
  90   @$temp_class_obj,  //undefined object
  91   $obj2->class_object1,
  92   $obj3->class_object2,
  93   $obj2->class_object1->value4,
  94   @$unset_obj
  95 );
  96 /* using zval_dump() to dump out the objects and its reference count */
  97 zval_dump($objects);
  98
  99 $int_var = 500;
 100 $obj = $int_var;  //$obj is lost, $obj1,$obj2,$obj3,$obj4 = 500
 101 echo "\n-- Testing debug_zval_dump() on overwritten object variables --\n";
 102 debug_zval_dump($obj, $obj1, $obj2, $obj3);
 103
 104 echo "\n-- Testing debug_zval_dump() on objects having circular reference --\n";
 105 $recursion_obj1 = new object_class();
 106 $recursion_obj2 = new object_class();
 107 $recursion_obj1->obj = &$recursion_obj2;  //circular reference
 108 $recursion_obj2->obj = &$recursion_obj1;  //circular reference
 109 debug_zval_dump($recursion_obj2);
 110
 111 echo "Done\n";
 112 ?>