ibase_set_event_handler
(PHP 5)
ibase_set_event_handler -- Register a callback function to be called when events are posted
Description
resource
ibase_set_event_handler ( callback event_handler, string event_name1 [, string event_name2 [, string ...]] )
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.
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
...
Return Values
The return value is an event resource. This resource can be used to free
the event handler using ibase_free_event_handler().
Examples
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");
?>
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