Multiple vars -> different string

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When I get vars from url i make a string. But string must be different if var exists or not on url. I put an example

i have two this url:

http://ift.tt/1HbVaEh http://ift.tt/1BdvgPv

I can get vars from first url with _GET

$var = "HAVING ".$_GET['cli']." AND ".$_GET['resp']." AND ".$_GET['type'];

and $var = "HAVING paris and James and emp"

but on second url i have $var="HAVING AND AND emp" because first and second var is empty

I can use multiple condition for all of vars (url can have 5 or 6 vars) but i think that there are a better solution.

Thanks

asked 37 secs ago

JavierCabot

1

Multiple vars -> different string