Php ibase set event handler () function

Write your php code

(PHP 5)

ibase_set_event_handler -- Register a callback function to be called when events are posted

Syntax

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. 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.


<?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().

Php ibase set event handler Function syntax tag

ibase set event handler php code on this is provided for your study purpose, it will guide you to know how create and design a website using php. use it to practice and train your self online

Php ibase set event handler syntax tutorial

php tutorial guide and code design are for easy learning and programming. The code practice section provided at the top is for practising of this syntax. Use the code section up to practice your php programming online. Learning php is very easy, all you need is to use the examples on this site and practice them to perfect your skills.