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Re: Parameter passing question [message #173553 is a reply to message #173551]

Mon, 18 April 2011 19:19

Denis McMahon
Messages: 634
Registered: September 2010

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Senior Member

On Mon, 18 Apr 2011 19:07:46 +0000, Unrest wrote:

> sidenote: isset evaluates to true only if the variable exists and is not
> null.

An empty string doesn't equate to null if you use the right comparison
operator!

("" === null) returns false

so, test if the variable is set, and if it is set, test for empty string

Rgds

Denis McMahon

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[Message index]

		Parameter passing question By: Chuck Lavin on Mon, 18 April 2011 17:03
		Re: Parameter passing question By: Denis McMahon on Mon, 18 April 2011 17:42
		Re: Parameter passing question By: Unrest on Mon, 18 April 2011 18:14
		Re: Parameter passing question By: Chuck Lavin on Mon, 18 April 2011 18:23
		Re: Parameter passing question By: Chuck Lavin on Mon, 18 April 2011 18:34
		Re: Parameter passing question By: Denis McMahon on Mon, 18 April 2011 19:04
		Re: Parameter passing question By: Chuck Lavin on Wed, 20 April 2011 06:49
		Re: Parameter passing question By: Unrest on Wed, 20 April 2011 09:28
		Re: Parameter passing question By: Thomas 'PointedEars' on Mon, 18 April 2011 18:28
		Re: Parameter passing question By: Unrest on Mon, 18 April 2011 18:45
		Re: Parameter passing question By: Curtis Dyer on Tue, 19 April 2011 03:28
		Re: Parameter passing question By: Chuck Lavin on Mon, 18 April 2011 18:20
		Re: Parameter passing question By: Denis McMahon on Mon, 18 April 2011 18:54
		Re: Parameter passing question By: Unrest on Mon, 18 April 2011 19:07
		Re: Parameter passing question By: Denis McMahon on Mon, 18 April 2011 19:19
		Re: Parameter passing question By: Unrest on Mon, 18 April 2011 19:40
		Re: Parameter passing question By: sheldonlg on Mon, 18 April 2011 19:11
		Re: Parameter passing question By: Denis McMahon on Mon, 18 April 2011 19:21
		Re: Parameter passing question By: Curtis Dyer on Tue, 19 April 2011 03:34

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