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PHP Manual
LimitIterator
Get current key

LimitIterator::key

(PHP 5 >= 5.1.0, PHP 7)

LimitIterator::key — 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