How To Check That A Parameter In A Url Exists Or Is Not Mispelled

Nov 25, 2010

How do i check that a parameter in a url exists or is not mispelled.

for example:

say the url should be passed as:


but accidentally gets passed as:


how to check for the mispelling (or the exsitance) of productID, as shown in the 2nd url example?

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