FilterIterator::key

(PHP 5 >= 5.1.0, PHP 7)

FilterIterator::key — Get the current key

说锟斤拷

public FilterIterator::key ( void ) : mixed

Warning

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Get the current key.

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The current key.

锟轿硷拷

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