ibase_set_event_handler Register a callback function to be called when events are posted &reftitle.description; resourceibase_set_event_handler callableevent_handler stringevent_name1 stringevent_name2 string... resourceibase_set_event_handler resourceconnection callableevent_handler stringevent_name1 stringevent_name2 string... This function registers a PHP user function as event handler for the specified events. &reftitle.parameters; event_handler The callback is called with the event name and the link resource as arguments whenever one of the specified events is posted by the database. The callback must return &false; if the event handler should be canceled. Any other return value is ignored. This function accepts up to 15 event arguments. event_name1 An event name. event_name2 At most 15 events allowed. &reftitle.returnvalues; The return value is an event resource. This resource can be used to free the event handler using ibase_free_event_handler. &reftitle.examples; ]]> &reftitle.seealso; ibase_free_event_handler ibase_wait_event