[PHP] Validating Form input

[Chris W <2wsxdr5@xxxxxxx>]

I was wondering what others think of my approach to form validation.  I 
know many use Java script to do various validation.  However, since 
there is no way to be sure the data sent to the server is actually 
valid, you have to check it in your php code on the server anyway.  
Granted you don't have to, but if you don't, you are just asking for 
someone to hack your system, or at the very least screw up your data.  
So my question is since you have to do a validity check on the server, 
why bother with the Java script?  The only advantage I can see to doing 
it with Java script is it will cut down on the errors in data that get 
to the server and then in turn reduce the number for resubmits and keep 
traffic down a little.  However since none of the projects I have worked 
on are very high traffic sites, that hasn't been much of a concern.

Any thoughts?


--
Chris W
KE5GIX

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