[FX.php List] PHP error help

[Bob Patin]

On Jun 30, 2008, at 3:04 PM, CSInfo wrote:

> FYI:
> The line:
> $createResult=$create=>FMFindAll();
> should be:
> $createResult=$create->FMFindAll();
>
I'm not surprised, I was typing quickly!

>
> I got my query to work, now I am getting an error when I submit  
> fields from the HTML from as POST that are empty? (resulting in no  
> POST) How do I ignore those?

One way is to test for empty POSTs like this:

if (strlen($_POST['myVariable']>0){
	$myVariable = $_POST['myVariable'];
}

When I require fields to not be empty, I string together a bunch of  
these, like this:

if ((strlen($_POST['myVariable']<1) or  
(strlen($_POST['myVariable2']<1) or (strlen($_POST['myVariable3']<1)){
	echo 'One or more required fields was not provided.<a  
href="javascript:history.back();">CLICK HERE</a> to return to the  
previous page.';
	exit;
}

Note that I use single-quotes around the ECHO line so that I can use  
double-quotes in the HREF.

This will put up a simple warning, with a link so they can go back to  
the form without retyping everything; yes, I know it's the same as the  
BACK button, but people like having it there.

Hope this helps,

Bob Patin
Longterm Solutions
bob at longtermsolutions.com
615-333-6858
http://www.longtermsolutions.com
FileMaker 9 Certified Developer
Member of FileMaker Business Alliance and FileMaker TechNet

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