PHP Manual
FilterIterator
Get the current key

FilterIterator::key

(PHP 5 >= 5.1.0, PHP 7)

FilterIterator::key — Get the current key

说明

public mixed FilterIterator::key ( void )

Warning

本函数还未编写文档，仅有参数列表。

Get the current key.

参数

此函数没有参数。

返回值

The current key.

参见

FilterIterator::next() - Move the iterator forward
FilterIterator::current() - Get the current element value

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