bazo/feature-toggler

Feature toggling library for php

dev-master 2016-07-07 11:19 UTC

This package is not auto-updated.

Last update: 2020-02-07 15:48:25 UTC


README

Feature toggling library for php

usage:

$toggler = new Toggler($config);
if($toggler->enabled('featureName')) {
	...
}

you can also pass context to toggler:

$toggler = new Toggler($config);

$context = [
	'userId' => 150,
	'site' => 'sk'

];
//using only globals
if($toggler->enabled('feature1')) { //true
	...
}

or
//using globals and local context
if($toggler->enabled('feature1', $context)) { //true
	...
}

configuration:

simple, with an array

$config = [
		'globals' => [
			'site'=> 'sk'
		],
		'feature1' => [
			'conditions' => [
				['field' => 'site', 'operator' => 'in', 'arg' => ['sk', 'cz']],
				['field' => 'userId', 'operator' => '>', 'arg' => 140]
		],
		'paypal' => [
			'conditions' => [
				['field' => 'site', 'operator' => 'in', 'arg' => ['sk', 'cz', 'de', 'at']]
			]
		]
];

or you can use use shorthand syntax for conditions, it's much cleaner and more readable

['site', 'in', ['sk', 'cz', 'de', 'at']]

Operators:

there's 5 built-in operators, that cannot be overriden: > - value must be greater than arg < - value must be lower than arg = - value must be equal than arg in - value must be in set of args notIn - value must not be in set of args

You can also register custom operators. A custom operator must implement IOperator interface

$operator = new MyCustomOperator;
$toggler->registerOperator($operator);

you can also override the default operator sign

$toggler->registerOperator($operator, 'myCustomSign');

then you write a condition like this

['field' => 'site', 'operator' => 'myCustomSign', 'arg' => [1, 2, 3, ...]]

Custom features backend:

You can also a custom backend for storing features and their conditions, for example a database

The backend needs to implement IFeaturesBackend interface which has one method: getConfig()

then you use it like this

$backend = new MyRedisBackend(...);
$toggler = new BackendDrivenToggler($backend)

enjoy!