singleton-pattern

PHP abstract singleton patter.

Installation

composer require hametuha/singleton-pattern

How to Use

Inherit from abstract class Hametuha\SingletonPattern\Singleton.

<?php

use Hametuha\SingletonPattern\Singleton;

class SampleSingleton extends Singleton {

    private $version = '';

    /**
     * This method is called inside constructor.
     */
    protected function init() {
        $this->version = get_wp_version();
    }

    /**
     * Greeting.
     */
    public function greet() {
        echo 'Hello World!';
    }
}

Then, call it outside.

<?php

SampleSingleton::get_instance()->greet();
// -> Hello World!

Bulk Registration

If you have PSR-0(or maybe PSR-4) based structure, you can bulk register them. For examle...

src
└Vendor
　└Library
　　└NameSpace
　　　├SampleClass
　　　├OtherClass
　　　└AnotherClass

You can call BulkRegister::enable to load them all!

Hametuha\SingletonPatter\BulkRegister::enable( 'Vendor\Library\NameSpace', __DIR__ . '/src/Vendor/Library/NameSpace' );
// => 3(enabled class count)

Syntax is like below:

BulkRegister::enable( $namespace, $directory_to_scan, $subclass, $method )

• $namespace Name space prefix. In the case above, Vendor/Library\NameSpace.
• $directory_to_scan This directory will be scanned. Not recursively
• $subclasss Class should be subclass of this class name. Defautl is Hametuha\SingletonPattern\Singleton.
• $method Static method to call. Default is get_instance().

License

GPL 3.0 or later.