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154 lines
6.0 KiB
Markdown
154 lines
6.0 KiB
Markdown
# chillerlan/php-settings-container
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A container class for immutable settings objects. Not a DI container. PHP 7.2+
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- [`SettingsContainerInterface`](https://github.com/chillerlan/php-settings-container/blob/master/src/SettingsContainerInterface.php) provides immutable properties with magic getter & setter and some fancy
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[![version][packagist-badge]][packagist]
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[![license][license-badge]][license]
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[![Travis][travis-badge]][travis]
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[![Coverage][coverage-badge]][coverage]
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[![Scrunitizer][scrutinizer-badge]][scrutinizer]
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[![Packagist downloads][downloads-badge]][downloads]
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[![PayPal donate][donate-badge]][donate]
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[packagist-badge]: https://img.shields.io/packagist/v/chillerlan/php-settings-container.svg?style=flat-square
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[packagist]: https://packagist.org/packages/chillerlan/php-settings-container
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[license-badge]: https://img.shields.io/github/license/chillerlan/php-settings-container.svg?style=flat-square
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[license]: https://github.com/chillerlan/php-settings-container/blob/master/LICENSE
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[travis-badge]: https://img.shields.io/travis/chillerlan/php-settings-container.svg?style=flat-square
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[travis]: https://travis-ci.org/chillerlan/php-settings-container
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[coverage-badge]: https://img.shields.io/codecov/c/github/chillerlan/php-settings-container.svg?style=flat-square
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[coverage]: https://codecov.io/github/chillerlan/php-settings-container
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[scrutinizer-badge]: https://img.shields.io/scrutinizer/g/chillerlan/php-settings-container.svg?style=flat-square
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[scrutinizer]: https://scrutinizer-ci.com/g/chillerlan/php-settings-container
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[downloads-badge]: https://img.shields.io/packagist/dt/chillerlan/php-settings-container.svg?style=flat-square
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[downloads]: https://packagist.org/packages/chillerlan/php-settings-container/stats
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[donate-badge]: https://img.shields.io/badge/donate-paypal-ff33aa.svg?style=flat-square
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[donate]: https://www.paypal.com/cgi-bin/webscr?cmd=_s-xclick&hosted_button_id=WLYUNAT9ZTJZ4
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## Documentation
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### Installation
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**requires [composer](https://getcomposer.org)**
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*composer.json* (note: replace `dev-master` with a version boundary)
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```json
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{
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"require": {
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"php": "^7.2",
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"chillerlan/php-settings-container": "^1.0"
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}
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}
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```
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### Manual installation
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Download the desired version of the package from [master](https://github.com/chillerlan/php-settings-container/archive/master.zip) or
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[release](https://github.com/chillerlan/php-settings-container/releases) and extract the contents to your project folder. After that:
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- run `composer install` to install the required dependencies and generate `/vendor/autoload.php`.
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- if you use a custom autoloader, point the namespace `chillerlan\Settings` to the folder `src` of the package
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Profit!
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## Usage
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The `SettingsContainerInterface` (wrapped in`SettingsContainerAbstract` ) provides plug-in functionality for immutable object variables and adds some fancy, like loading/saving JSON, arrays etc.
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It takes iterable as the only constructor argument and calls a method with the trait's name on invocation (`MyTrait::MyTrait()`) for each used trait.
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### Simple usage
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```php
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class MyContainer extends SettingsContainerAbstract{
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protected $foo;
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protected $bar;
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}
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```
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```php
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// use it just like a \stdClass
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$container = new MyContainer;
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$container->foo = 'what';
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$container->bar = 'foo';
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// which is equivalent to
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$container = new MyContainer(['bar' => 'foo', 'foo' => 'what']);
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// ...or try
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$container->fromJSON('{"foo": "what", "bar": "foo"}');
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// fetch all properties as array
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$container->toArray(); // -> ['foo' => 'what', 'bar' => 'foo']
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// or JSON
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$container->toJSON(); // -> {"foo": "what", "bar": "foo"}
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//non-existing properties will be ignored:
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$container->nope = 'what';
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var_dump($container->nope); // -> null
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```
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### Advanced usage
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```php
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trait SomeOptions{
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protected $foo;
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protected $what;
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// this method will be called in SettingsContainerAbstract::construct()
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// after the properties have been set
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protected function SomeOptions(){
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// just some constructor stuff...
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$this->foo = strtoupper($this->foo);
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}
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// this method will be called from __set() when property $what is set
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protected function set_what(string $value){
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$this->what = md5($value);
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}
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}
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trait MoreOptions{
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protected $bar = 'whatever'; // provide default values
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}
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```
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```php
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$commonOptions = [
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// SomeOptions
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'foo' => 'whatever',
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// MoreOptions
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'bar' => 'nothing',
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];
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// now plug the several library options together to a single object
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$container = new class ($commonOptions) extends SettingsContainerAbstract{
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use SomeOptions, MoreOptions;
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};
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var_dump($container->foo); // -> WHATEVER (constructor ran strtoupper on the value)
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var_dump($container->bar); // -> nothing
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$container->what = 'some value';
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var_dump($container->what); // -> md5 hash of "some value"
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```
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### API
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#### [`SettingsContainerAbstract`](https://github.com/chillerlan/php-settings-container/blob/master/src/SettingsContainerAbstract.php)
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method | return | info
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-------- | ---- | -----------
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`__construct(iterable $properties = null)` | - | calls `construct()` internally after the properties have been set
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(protected) `construct()` | void | calls a method with trait name as replacement constructor for each used trait
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`__get(string $property)` | mixed | calls `$this->{'get_'.$property}()` if such a method exists
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`__set(string $property, $value)` | void | calls `$this->{'set_'.$property}($value)` if such a method exists
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`__isset(string $property)` | bool |
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`__unset(string $property)` | void |
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`__toString()` | string | a JSON string
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`toArray()` | array |
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`fromIterable(iterable $properties)` | `SettingsContainerInterface` |
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`toJSON(int $jsonOptions = null)` | string | accepts [JSON options constants](http://php.net/manual/json.constants.php)
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`fromJSON(string $json)` | `SettingsContainerInterface` |
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`jsonSerialize()` | mixed | implements the [`JsonSerializable`](https://www.php.net/manual/en/jsonserializable.jsonserialize.php) interface
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## Disclaimer
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This might be either an utterly genius or completely stupid idea - you decide. However, i like it and it works.
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Also, this is not a dependency injection container. Stop using DI containers FFS.
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