ibase_set_event_handler
(no version information, might be only in CVS)
ibase_set_event_handler -- Register a callback function
to be called when events are posted
Description
resource ibase_set_event_handler ( [resource connection,
callback event_handler, string event_name1 [, string event_name2
[, string ...]]])
This function registers a PHP user function as event handler
for the specified events. 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.
<?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");
?>
The return value is an event resource. This resource can
be used to free the event handler using ibase_free_event_handler().
See also ibase_free_event_handler() and ibase_wait_event().
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