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True Singleton Class: PHP implementation of the singleton design pattern

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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.


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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Name: True Singleton Class
Base name: singleton_class
Description: PHP implementation of the singleton design pattern
Version: 1.0.5
PHP version: 5.0
License: GNU General Public License (GPL)
All time users: 1090 users
All time rank: 3119
Week users: 0 users
Week rank: 1788 Equal
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All time: Sufficient (68.8%) Sufficient (62.5%) - Sufficient (75.0%) - - Not sure (48.1%) 1714
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common misunderstanding of a singleton This is a very common problem with almost all available singleton implantations. THANK GOD I FOUND A BETTER SOLUTION FOR MY READER...
Singleton Tutorial An in-depth analysis of singleton design pattern .

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Plain text file singleton.class.php Class Singleton Class
Accessible without login Plain text file License.txt Lic. GPL License for sTonClass
Accessible without login Plain text file example.php Example example of use of singleton class

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