What is the difference between is_a and instanceof?

Posted by Daniel L on Stack Overflow See other posts from Stack Overflow or by Daniel L
Published on 2010-06-10T19:19:05Z Indexed on 2010/06/10 19:22 UTC
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I am aware that instanceof is an operator and that is_a is a method.

Is the method slower in performance? What would you prefer to use?

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