LimitIterator::key()
(PHP 5 >= 5.1.0, PHP 7)
Get current key
说明
public LimitIterator::key( void) : mixed
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