[PHP] Re: test variable value?

2006-01-11 Thread James Benson 

If your talking values in submitted form data I would use:


if(isset($var)  trim($var) == '') {
   echo Please give a value;
}




James




William Stokes wrote:

Hello

What is the best way to determine if a variable has no value?

if ($var= '')

or

if ($var= 'null')


Can 'null' be used here?

Thanks
-Willa 


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[PHP] Re: test variable value?

2006-01-11 Thread David Robley 
William Stokes wrote:

 Hello
 
 What is the best way to determine if a variable has no value?
 
 if ($var= '')
 
 or
 
 if ($var= 'null')
 
 
 Can 'null' be used here?

Look at isset() and empty()

Cheers
-- 
David Robley

You cannot achieve the impossible without attempting the absurd.

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