sven / file-config
Store and read configuration values using files on disk
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Requires
- php: ^8.0
- ext-json: *
Requires (Dev)
- league/flysystem: ^3.0
- phpunit/phpunit: ^9.0 | ^10.0
This package is auto-updated.
Last update: 2024-10-28 08:58:35 UTC
README
File Config
This package provides a persistent config store as flat files with an easy to use and understand API. This is perfect if the config file should be stored in userland, or somewhere the user is allowed to edit it manually.
Installation
You'll have to follow a couple of simple steps to install this package.
Downloading
Via composer:
$ composer require sven/file-config:^3.1
Or add the package to your dependencies in composer.json
and run
composer update sven/file-config
on the command line to download
the package:
{ "require": { "sven/file-config": "^3.1" } }
Available drivers
Json
- For.json
files.DotEnv
- For.env
files.Env
(deprecated)
You can also write your own driver to use in your own applications. To write your own, read writing your own driver in this document.
Usage
To get started, construct a new instance of \Sven\FileConfig\Store
, providing it with a \Sven\FileConfig\File
object, and an implementation of the \Sven\FileConfig\Drivers\Driver
interface. We'll use the pre-installed
Json
driver in the examples.
use Sven\FileConfig\File; use Sven\FileConfig\Store; use Sven\FileConfig\Drivers\Json; $file = new File('/path/to/file.json'); $config = new Store($file, new Json());
You can interact with your newly created $config
object via the get
, set
, and delete
methods.
Examples
Let's take a look at some examples.
Getting a value from the file
To retrieve a value from the configuration file, use the get
method. Let's assume our (prettified)
JSON configuration file looks like this:
{ "database": { "name": "test", "host": "localhost", "user": "admin", "password": "root" } }
We can get the entire database
array:
$config->get('database'); // ~> ['name' => 'test', 'host' => 'localhost', 'user' => 'admin', 'password' => root']
... or get only the database.host
property using dot-notation:
$config->get('database.host'); // ~> 'localhost'
If the given key can not be found, null
is returned by default. You may override this by
passing a second argument to get
:
$config->get('database.does_not_exist', 'default'); // ~> 'default'
Setting a value in the file
To add or change a value in the configuration file, you may use the set
method. Note that
you have to call the persist
method to write the changes you made to the file. You may also
use the fresh
method to retrieve a "fresh" instance of the Store
, where the values will be
read from the file again.
$config->set('database.user', 'new-username'); $config->persist(); $freshConfig = $config->fresh(); $freshConfig->get('database.user'); // ~> 'new-username'
The file will end up looking like this after you've called the persist
method:
{ "database": { "name": "test", "host": "localhost", "user": "new-username", "password": "root" } }
Deleting an entry from the file
To remove one of the configuration options from the file, use the delete
method. Again, don't forget
to call persist
to write the new contents to the file!
$config->delete('database.user'); $config->persist();
{ "database": { "name": "test", "host": "localhost", "password": "root" } }
Writing your own driver
You may want to use a file format for your configuration that's not (yet) included in this package. Thankfully, writing a driver is as straightforward as turning your file's contents into a PHP array.
To create a driver, create a class that implements the \Sven\FileConfig\Drivers\Driver
interface. Then add 2 methods to your class: import
and export
. The import
method
will receive the contents of the file as an argument, and expects a PHP array to be returned.
The export
method is the exact reverse: it receives a PHP array, and expects the new contents
of the file to be returned (as a string). To see how this works in more detail, take a look at
the pre-installed json
driver.
Contributing
All contributions (pull requests, issues and feature requests) are welcome. Make sure to read through the CONTRIBUTING.md first, though. See the contributors page for all contributors.
License
sven/file-config
is licensed under the MIT License (MIT). Please see the
license file for more information.