AppendIterator::getInnerIterator()

(PHP 5>=5.1.0,PHP 7)

Gets the inner iterator

说明

publicAppendIterator::getInnerIterator(void) :Iterator

This method returns the current inner iterator.

参数

此函数没有参数。

返回值

The current inner iterator,orNULLif there is not one.

范例

Example#1AppendIterator::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;
}
?>

以上例程会输出：

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

参见

• AppendIterator::getIteratorIndex() Gets an index of iterators