True singleton class Php Class

Design Patterns: True Singleton Class
sourav ray (contact me)
In software engineering, a design pattern is a general solution to a common problem in software design. One of these design patterns is called the Singleton. It's purpose can be described quite briefly as follows:

Ensure a class has only one instance and provide a global point of access to it.

It achieves this by only creating a new instance the first time it is referenced, and thereafter it simply returns the handle to the existing instance.

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sTonClass is a base class that implements the singleton design pattern.

The class can only be instantiated using a static function that assures that there is only one object of that class.

If the class was already instantiated, it returns a reference to the previously created class object.

The class also provides functions for store, retrieving and deleting object properties.

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Not sure (58.3%) Not sure (58.3%) - Sufficient (75.0%) - - Not sure (42.5%) 1588

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singleton.class.php

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Singleton Class

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GPL License for sTonClass

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Utility	Consistency	Docs	Examples	Tests	Videos	Overall	Rank
Not sure (58.3%)	Not sure (58.3%)	-	Sufficient (75.0%)	-	-	Not sure (42.5%)	1588