AppendIterator::getIteratorIndex()
(PHP 5>=5.2.0,PHP 7)
Gets an index of iterators
说明
public AppendIterator::getIteratorIndex(void) : int
Gets the index of the current inner iterator.
参数
此函数没有参数。
返回值
Returns aninteger,which is the zero-based index of the current inner iterator.
范例
Example#1AppendIterator.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; } ?>
以上例程会输出:
0 a aardwolf 0 b bear 0 c capybara 1 0 apple 1 1 orange 1 2 lemon
参见
- AppendIterator::getInnerIterator() Gets the inner iterator
- AppendIterator::getArrayIterator() Gets the ArrayIterator