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SINGLETON CSE BASE

A Singleton Design Pattern which allow easy used singleton class.

Project repository: https://github.com/cs-eliseev/base-singleton

DEMO

class ExampleSingleton
{
    use SingletonTrait;
    ...
}
$instance = ExampleSingleton::getInstance();
$instanceName = ExampleSingleton::getInstance('instance_name');

Introduction

CSE BASE is a set of libraries written in PHP specifically to extend your classes.

A set of basic methods for creating your classes is what you need to quickly create web applications. SINGLETON CSE BASE, позволяет легко и просто создавать singleton класс.

CSE BASE was created for the rapid development of web applications.

CSE Base project:

• Exceptions CSE base
• Singleton CSE base

Below you will find some information on how to init library and perform common commands.

Install

You can find the most recent version of this project here.

Composer

Execute the following command to get the latest version of the package:

composer require cse/base-singleton

Or file composer.json should include the following contents:

{
    "require": {
        "cse/base-singleton": "*"
    }
}

Git

Clone this repository locally:

git clone https://github.com/cs-eliseev/base-singleton.git

Download

Download the latest release here.

Usage

View test model: ModelSingleton.php

See examples: examples-singleton.php

Create Model Singleton

Examples:

class ModelSingleton
{
    use SingletonTrait;

    protected $param = 0;

    /**
     * @param int $param
     */
    public function setParam(int $param): void
    {
        $this->param = $param;
    }

    /**
     * @return int
     */
    public function getParam(): int
    {
        return $this->param;
    }
}

Create INSTANCE singleton

Examples:

$instance = ModelSingleton::getInstance();
$instance->setParam(10);
$instance->getParam();
// 10

Create singleton instance by name:

$instance2 = ModelSingleton::getInstance('new');
$instance2->setParam(20);
$instance->getParam();
// 10
$instance2->getParam();
// 20

Restore singleton instance:

$instance3 = ModelSingleton::getInstance();
$instance3->setParam(30);
$instance->getParam();
// 30
$instance2->getParam();
// 20
$instance3->getParam();
// 30

EXCEPTIONS singleton

__CLONE:

try {
    $clone = clone ModelSingleton::getInstance();
} catch (CSESingletonException $e) {
    // Singleton can not using clone
}

__SLEEP:

try {
    $serialize = serialize(ModelSingleton::getInstance());
} catch (CSESingletonException $e) {
    // Singleton can not serialize
}

__WAKEUP:

try {
    ...
} catch (CSESingletonException $e) {
    // Singleton can not deserialize
}

Testing & Code Coverage

PHPUnit is used for unit testing. Unit tests ensure that class and methods does exactly what it is meant to do.

General PHPUnit documentation can be found at https://phpunit.de/documentation.html.

To run the PHPUnit unit tests, execute:

phpunit PATH/TO/PROJECT/tests/

If you want code coverage reports, use the following:

phpunit --coverage-html ./report PATH/TO/PROJECT/tests/

Used PHPUnit default config:

phpunit --configuration PATH/TO/PROJECT/phpunit.xml

Donating

You can support this project here. You can also help out by contributing to the project, or reporting bugs. Even voicing your suggestions for features is great. Anything to help is much appreciated.

License

The SINGLETON CSE BASE is open-source PHP library licensed under the MIT license. Please see License File for more information.

GitHub @cs-eliseev