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Possible Duplicate:
Global or Singleton for database connection?
I have registered globals off. I make a connection to my database and save it in $db. In a function, I declare it global. I know that makes my variable global, so I can access it with $GLOBALS even after the function returns.
Did I just expose my connection to a security threat? Do I need to pass it as a parameter each time?
Design-wise, there are better practices than having a global connection, but I can’t see any security threats coming from this.