on 08/10/02 9:13 AM, Anup ([EMAIL PROTECTED]) wrote:

> Hello, I have been dealing with different form proccessing PHP scripts. When
> I start a new job I usually have a script that just takes the form POST
> values and prints them to the screen, so I know what I'm working with.  Now
> I have a question say the form has 1 field named "FirstName". If the field
> is left blank, sometimes my script will print the key and NO value, or it
> will just print out nothing, ie NO key or value.

Are you certain this is happening on text fields?  Typically text fields,
password fields and textareas allways set a key, and no value of blank.  Ie:

$_POST['FirstName'] = '';

Select boxes should always have a value set.

Check boxes are only set IF the box was ticked.

What I'd advise is that you make a quick form and test this out -- perhaps
it was only checkboxes that were sometimes not being set?

> any ideas.  Could it be the server (IIS or Unix/Linux) of the form and the
> server (IIS or Unix/Linux)  of the script.?
> Since I do jobs for different people and environments any combination of
> servers are possible.

I've never experienced this problem on any environment -- FreeBSD, RedHat or

> The reason, for this post is that I don't know if I should always put code
> to check for validilty using isset all the time or should I put it in just
> in case the script gets moved. I want to pinpoint this so that I can write
> more effective code.

You should be able to use isset() or empty() on text/password/textarea form
elements reliably.

Write a SMALL test script, test it, and if it ain't working, post the code


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