Its been there a long time, I think since PHP 5. (Certainly, it was old in 2008,... | Hacker News

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		pbiggar on March 24, 2012 \| parent \| context \| favorite \| on: Poll: What's Your Most Disliked Programming Langua... Its been there a long time, I think since PHP 5. (Certainly, it was old in 2008, when I was working on PHP).

georgefox on March 24, 2012 [–]

You're correct. Type hinting was introduced with PHP 5, which makes it about eight years old.

http://php.net/manual/en/language.oop5.typehinting.php

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