AppendIterator::getInnerIterator

(PHP 5 >= 5.1.0, PHP 7)

Gets the inner iterator

public Iterator AppendIterator::getInnerIterator ( void )

This method returns the current inner iterator.

Returns:

The current inner iterator, or NULL if there is not one.

Examples:

AppendIterator::getInnerIterator() example

<?php
$array_a = new ArrayIterator(array('a' => 'aardwolf', 'b' => 'bear', 'c' => 'capybara'));
$array_b = new RegexIterator($array_a, '/^[ac]/');

$iterator = new AppendIterator;
$iterator->append($array_a);
$iterator->append($array_b);

foreach ($iterator as $current) {
    $inner = $iterator->getInnerIterator();
    if ($inner instanceOf RegexIterator) {
        echo 'Filtered: ';
    } else {
        echo 'Original: ';
    }
    echo $current . PHP_EOL;
}
?>

The above example will output:

Original: aardwolf
Original: bear
Original: capybara
Filtered: aardwolf
Filtered: capybara