ibase_set_event_handler

(PHP 5, PHP 7 < 7.4.0)

ibase_set_event_handlerRegister a callback function to be called when events are posted

Description

ibase_set_event_handler(callable $event_handler, string $event_name, string ...$even_names): resource
ibase_set_event_handler(
    resource $connection,
    callable $event_handler,
    string $event_name,
    string ...$event_names
): resource

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_name

An event name.

event_names

At most 15 events allowed.

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");
?>

See Also

Here you can write a comment


Please enter at least 10 characters.
Loading... Please wait.
* Pflichtangabe
There are no comments available yet.

PHP cURL Tutorial: Using cURL to Make HTTP Requests

cURL is a powerful PHP extension that allows you to communicate with different servers using various protocols, including HTTP, HTTPS, FTP, and more. ...

TheMax

Autor : TheMax
Category: PHP-Tutorials

Midjourney Tutorial - Instructions for beginners

There is an informative video about Midjourney, the tool for creating digital images using artificial intelligence, entitled "Midjourney tutorial in German - instructions for beginners" ...

Mike94

Autor : Mike94
Category: KI Tutorials

Basics of views in MySQL

Views in a MySQL database offer the option of creating a virtual table based on the result of an SQL query. This virtual table can be queried like a normal table without changing the underlying data. ...

admin

Autor : admin
Category: mySQL-Tutorials

Publish a tutorial

Share your knowledge with other developers worldwide

Share your knowledge with other developers worldwide

You are a professional in your field and want to share your knowledge, then sign up now and share it with our PHP community

learn more

Publish a tutorial