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(PHP 5, PHP 7, PHP 8)
Интерфейс для создания внешнего итератора.
Пример #1 Базовый пример реализации интерфейса
<?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";
}Вывод приведённого примера будет похож на:
string(7) "key one" string(8) "item one" string(7) "key two" string(8) "item two" string(9) "key three" string(10) "item three"
