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# ibase_free_event_handler

(PHP 5)

ibase_free_event_handler -- Cancels a registered event handler

## Description

bool ibase_free_event_handler ( resource event )

This function causes the registered event handler specified by event to be cancelled. The callback function will no longer be called for the events it was registered to handle. 成功回傳`TRUE`失敗回傳`FALSE`。

See also ibase_set_event_handler().

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