function foo($bar,$barbar,$option="") {}
Is there a proper term for $bar etc., and/or name for optional variables?
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Mechanical snail
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aslum
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Somewhat related: http://stackoverflow.com/questions/156767/whats-the-difference-between-an-argument-and-a-parameter – Mechanical snail Aug 21 '12 at 01:35
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In that example, $bar is a parameter. Given your example, in a call of foo(1, 2, 3); the value 1 would be an argument. See this question for the distinction. (tl;dr version: parameters are the slots/variables that hold the arguments.)
$option is an optional parameter.
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Thanks! This is exactly what I was looking for. I knew this, or at least learned it long ago and forgot it. – aslum Jul 20 '11 at 23:09