in php5 what is the technical term for specifying class name before object variable in a function parameters

function(myCar $cars)

Wha开发者_JAVA技巧t is the technical term of myCars?

catch(Exception $e)

I know what is the try, catch block and exception term. But I want the technical name for representing a class name.

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That's called Type Hinting. See http://www.php.net/manual/en/language.oop5.typehinting.php.