AppendIterator::getIteratorIndex
PHP function
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(PHP 5 >= 5.2.0, PHP 7, PHP 8)
Gets an index of iterators
Description
AppendIterator::getIteratorIndex(): int|null
Gets the index of the current inner iterator.
Parameters Parameters
Return Values
Returns the zero-based, integer index of the current inner iterator if it exists, or null otherwise.
Examples
AppendIterator.getIteratorIndex basic example
php
<?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:
output
0 a aardwolf
0 b bear
0 c capybara
1 0 apple
1 1 orange
1 2 lemonSee Also
AppendIterator::getInnerIteratorAppendIterator::getArrayIterator