This is a thorny topic for some people to grasp. The way I finally
figured it out is that there are three answers to a yes and no
question: yes, no and no answer. Or, to put it in boolean terms
1,0,NULL. It's that third option in a two option multiple choice
question that throws things.
What y
--- Terence <[EMAIL PROTECTED]> wrote:
> Say you have a querystring - index.php?myname=joe
>
> To determine whether myname has a value I have come to the following
> conclusions / shortcomings when using one of the following:
There is an inherent problem in the varying ways that people interpret
Hi,
Say you have a querystring - index.php?myname=joe
To determine whether myname has a value I have come to the following
conclusions / shortcomings when using one of the following:
ISSET = as long as the variable myname exists it's set, but there's no
guarantee of a value
!EMPTY = if your nam
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