(PHP 5, PHP 7 < 7.4.0)
ibase_set_event_handler — Register a callback function to be called when events are posted
$event_handler
, string $event_name
, string ...$even_names
) : resource$connection
, callable $event_handler
, string $event_name
, string ...$event_names
) : resourceThis function registers a PHP user function as event handler for the specified events.
event_handlerThe 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_nameAn event name.
event_namesAt most 15 events allowed.
The return value is an event resource. This resource can be used to free the event handler using ibase_free_event_handler().
Example #1 ibase_set_event_handler() example
<?php
function event_handler($event_name, $link)
{
if ($event_name == "NEW ORDER") {
// process new order
ibase_query($link, "UPDATE orders SET status='handled'");
} else if ($event_name == "DB_SHUTDOWN") {
// free event handler
return false;
}
}
ibase_set_event_handler($link, "event_handler", "NEW_ORDER", "DB_SHUTDOWN");
?>