php man page for iteratoraggregate

ITERATORAGGREGATE(3)							 1						      ITERATORAGGREGATE(3)

The IteratorAggregate interface

INTRODUCTION
	Interface to create an external Iterator.

INTERFACE SYNOPSIS
       IteratorAggregate

       IteratorAggregateextends
       Traversable

       Methods

       o abstractpublic Traversable IteratorAggregate::getIterator (void  )

       Example #1

	      Basic usage

	      <?php
	      class myData implements IteratorAggregate {
		  public $property1 = "Public property one";
		  public $property2 = "Public property two";
		  public $property3 = "Public property three";

		  public function __construct() {
		      $this->property4 = "last property";
		  }

		  public function getIterator() {
		      return new ArrayIterator($this);
		  }
	      }

	      $obj = new myData;

	      foreach($obj as $key => $value) {
		  var_dump($key, $value);
		  echo "
";
	      }
	      ?>

	      The above example will output something similar to:

	      string(9) "property1"
	      string(19) "Public property one"

	      string(9) "property2"
	      string(19) "Public property two"

	      string(9) "property3"
	      string(21) "Public property three"

	      string(9) "property4"
	      string(13) "last property"

PHP Documentation Group 												      ITERATORAGGREGATE(3)