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WeakMap::key

(PECL weakref >= 0.2.0)

WeakMap::keyReturns the current key under iteration

Description

public WeakMap::key ( ) : object

Returns the object serving as key in the map, at the current iterating position.

Parameters

This function has no parameters.

Return Values

The object key currently being iterated.

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https://www.php.net/manual/en/weakmap.key.php