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Example code of phpninjas/observable

Informations about the package observable

I got an event!

Most modern php frameworks are migrating toward event and message based paradigms. This library goes some way to solving the problem of event object contracts between producers and subscribers.

Installation

Get Composer

composer.json

Example

Use the notifier in your class.

Caveats

The notifier doesn't accept more than 1 argument to be notified of. This forces people to encapsulate their messages better, i.e. if you want to pass more than 1 piece of data encapsulate it in another object

Bear in mind non-typesafe observers will receive EVERYTHING, If you add an observer with no typed parameter definition (i.e. the argument is not of a class Type) it will get ALL event messages.

Dragons

Recursive events are bad! Don't do it. i.e. don't have an observer send the same event it just received to the same producer

Performance

The performance is roughly 50% faster than Symfony Dispatcher.

In a 2million event based test, Symfony event dispatcher took 37 seconds, while Notifier took 22 seconds (OSX 10.9.5, 2.3Ghz Intel I7, 16GB mem PHP 5.4.30).

All versions of observable with dependencies

PHP Build Version
Package Version
Requires php Version >=5.4.0
Composer command for our command line client (download client) This client runs in each environment. You don't need a specific PHP version etc. The first 20 API calls are free. Standard composer command

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