文字
LimitIterator::key
(PHP 5 >= 5.1.0)
LimitIterator::key — Get current key
说明
public mixed LimitIterator::key
( void
)
Gets the key for the current item in the inner Iterator.
参数
此函数没有参数。
返回值
Returns the key for the current item.
参见
- LimitIterator::getPosition() - Return the current position
- LimitIterator::current() - Get current element
- LimitIterator::next() - Move the iterator forward
- LimitIterator::rewind() - Rewind the iterator to the specified starting offset
- LimitIterator::seek() - Seek to the given position
- LimitIterator::valid() - Check whether the current element is valid