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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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