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The main 'MDB2' class is simply a container class with some static methods for creating DB objects as well as some utility functions common to all parts of DB.
To connect to a database you have to use the function factory(), connect() or singleton(), which require a valid DSN as the first parameter.
PEAR MDB2 is a project to merge PEAR DB and Metabase into one DB abstraction layer. You can get info on these at: PEAR DB: http://pear.php.net Metabase:
2012/2/10 -I'm trying to create a simple to use singleton class to connect to mysql database and do queries, the code works fine and i haven't had any problems with it.
2021/10/29 -Today I did some modifications into my database class. One of them was to use singleton pattern but I'm not 100% sure if i'm doing it right ...
2017/5/5 -TLDR; The reason Singletons or anything static is considered dangerous is because of side effects, you notice these immediately in tests where ...
2025/1/18 -Using a Singleton for database connections limits scalability, making it unsuitable for high-load applications — at least not without some ...
A singleton is similar to a module, except that with a singleton only one model can exist in the database. A singleton can be used for a homepage or for example ...
2010/12/17 -Give the table an identity column, give it a uniqueness constraint, then add a column constraint to only allow a single value. This will ensure ...
Singleton is a creational design pattern that lets you ensure that a class has only one instance, while providing a global access point to this instance.
Singleton in C++Singleton in PythonSingleton in TypeScriptSingleton in Go