NYCPHP Meetup

[Malcolm, Gary]

I've been told best practice is to NOT use globals in functions, if simply
for readability but I bet we all do :) . Also, I wonder if a passed
reference to a variable is as efficient... does anyone have an opinion on
which of these is better and why (as a general rule)
1)

	$var foo;
	function  bar(&$foo){
		do stuff to change $foo
	}

2)
	var $foo = bar();
	function bar(){
		do stuff
		return a value for $foo
	}

3)
var $foo;
bar();
function bar(){
	global $foo;
	do stuff to change $foo
}

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