The difference between an instance variable and a static variable.

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This is a great one. I'm definitely using it in class this fall to explain static variables.
- Fun fact: I made this meme to explain my classmates static variables.
Perl actually uses my and our to do scope.

my @foo;

our $bar;
Young man, could.you explain your shitpost?
- int variable => local scope => my int from the perspective of an instance
  
  static int variable => class scope => our int, for all instances of a class
  
  You know what's funny? In PHP it's backwards :D

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