Make event non-pending and free resources allocated for this event

# Event::free

(PECL event >= 1.2.6-beta)

Event::free — Make event non-pending and free resources allocated for this event

### 説明

public function Event::free(): void

Removes event from the list of events monitored by libevent, and free resources allocated for the event.

警告

The Event::free() method currently doesn't destruct the object itself. To destruct the object completely call unset(), or assign `null`.

### パラメータ

この関数にはパラメータはありません。

### 戻り値

値を返しません。

### 参考

- Event::__construct() - Constructs Event object

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