AppendIterator::getIteratorIndex

(PHP 5 >= 5.2.0, PHP 7, PHP 8)

AppendIterator::getIteratorIndexGets an index of iterators

Description

public AppendIterator::getIteratorIndex(): ?int

Gets the index of the current inner iterator.

Parameters

This function has no parameters.

Return Values

Returns the zero-based, integer index of the current inner iterator if it exists, or null otherwise.

Examples

Example #1 AppendIterator.getIteratorIndex() basic example

<?php$array_a = new ArrayIterator(array('a' => 'aardwolf', 'b' => 'bear', 'c' => 'capybara'));$array_b = new ArrayIterator(array('apple', 'orange', 'lemon'));$iterator = new AppendIterator;$iterator->append($array_a);$iterator->append($array_b);foreach ($iterator as $key => $current) {    echo $iterator->getIteratorIndex() . '  ' . $key . ' ' . $current . PHP_EOL;}?>

The above example will output:

0  a aardwolf
0  b bear
0  c capybara
1  0 apple
1  1 orange
1  2 lemon

See Also