无需使用Global / Singleton即可在全球范围内使用数据库连接
I'm creating a new PHP application and want to make sure I get the ground work right to save any future problems. I know my application will have more than one class that will need a database connection (PDO) and after a long time scouring the internet i can't find a definitive solution.
I like the singleton design pattern personally, but there are a lot of people out there that say singletons in general should be avoided at all costs. These people, however, don't give a specific solution to this problem.
I understand that an application may need more than one database connection but could i not create a singleton that contained each required DB connection (i.e. DB::getInst('conn1')->query(); )?
Is it a case of having to pass round the PDO (or PDO wrapper) object to every class that may need it? I've done this before found it annoying keeping track of it.