Hmm.  OK with the help below, I am closer.

The other fields on the page are getting passed via form fields that look like this:

input type="text" value="<?php echo check('element9'); ?>" name="form[element9]" size="40" maxlength="255"
so I added:
input type="text" value="<?php echo check('my_id'); ?>" name="form[my_id]" size="40" maxlength="255"

and formcheck.php has:

//start the session

//array of fields in form. (In the format "field_name" => "field_label")
$form_fields = array(
"element0" => 'Your Name:',
"element1" => 'Your Email:',
"element4" => 'Item Number:',
and I added:
"my_id" => 'My ID Is:',

And this works!
So when I am on mypage.php and I enter a value into the form field "my_id" it carries over and repopulates should the form fail validation.

But upon initial load of the page from my link of mypage.php?my_id=5 (so I am not getting there via a form submit) how do I get the value into the form field?


On Feb 25, 2010, at 1:02 AM, viraj wrote:

if you do the redirection with header('Location: /mypage.php'),
setting a variable on formcheck.php is not enough.

if you modify the header('Location: /mypage.php') to..

header('Location: /mypage.php?my_id=5')

it will take the variable to mypage.php as $_GET['my_id]

you can not expect a variable value set in to $_POST array to reflect
on a totally different page without making it a form post (aka use of
proper headers).

i guess, it's time to you to read about session_start() method and the
array $_SESSION available in php :)


On Thu, Feb 25, 2010 at 11:22 AM, Rick Dwyer <> wrote:
OK... external function... that would explain why I could not locate it.

Let me get right to the problem I am having with this code as someone may be
able to help directly.

I have a link on a page that opens a contact form.  The link is

So on mypage.php, I capture this value with:

I understand this much. But when the end user submits this contact form they do so to formcheck.php and if formcheck.php sees a required field is blank, it throws it back to mypage.php with an alert. BUT, I lose the value of the variable $my_id. SO, I created a hidden field on mypate.php with
 value="<?php echo $my_id; ?>" and on formcheck.php, I added $my_id =

However, when formcheck.php returns me to mypage.php, $my_id is still blank.

Very frustrating.

Any help determining what I am doing wrong is greatly appreciated.



On Feb 25, 2010, at 12:31 AM, Paul M Foster wrote:

On Thu, Feb 25, 2010 at 12:16:08AM -0500, Robert Cummings wrote:

Rick Dwyer wrote:

Hello all.

I'm trying to learn PHP on the fly and I have a line of code that
contains syntax I can't find documented anywhere:

php echo check('element8');

In the above line, can someone tell me what "check" means?

In the above, check is a function. It is being called with parameter

This is true. But perhaps more importantly, check() is not a native PHP
function. Thus it comes from some other library or group of external


Paul M. Foster

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