The IteratorAggregate interface

(PHP 5, PHP 7, PHP 8)

Introduction

Interface to create an external Iterator.

Interface synopsis

interface IteratorAggregate extends Traversable {
/* Methods */
public getIterator(): Traversable
}

Examples

Example #1 Basic usage

<?php

class myData implements IteratorAggregate
{
public function getIterator(): Traversable
{
return new ArrayIterator([
"key one" => "item one",
"key two" => "item two",
"key three" => "item three"
]);
}
}

$obj = new myData();

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

The above example will output something similar to:

string(7) "key one"
string(8) "item one"

string(7) "key two"
string(8) "item two"

string(9) "key three"
string(10) "item three"

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