One echo cancelling the other

[tryin_to_learn]

This is for same code I posted in the previous post, but a different problem. In a nutshell, a form asks the user how many of 4 different types of forms they want. The numbers from the POST data are then used to dynamically generate links to the proper forms. This is a multi-page form, so the links themselves are calling other functions that actually generate the appropriate form. What I want is for the list of links to remain at the top of each new form that's generating, and I'd also like to be able to "deactivate" a link once they've submitted the data for that particular form. That way, they'll always be able to navigate to forms they haven't yet filled out and they can also see which ones they've already completed.

Right now, the links echo out just fine and when you click on one, it takes you to the proper form. However, when the function call triggered by the link prints out the form, it essentially wipes out all of the links. Would appreciate any suggestions on how to:

1. Keep the links appearing on each page and
2. Make modifications to the link list to deactivate links to forms that have already been submitted

Here's the code:

<?php
session_start();
ob_start();
// Include database connections and templates
require_once("templates/t_convention2006.php");
require_once("classes/conferenceConfig.php");
require_once("classes/MySQL.php");
require_once("classes/Session.php");


head("NDSC 2006 Convention");

$thisFile = $_SERVER['PHP_SELF'];


//////////////// The form strings //////////////////////////

// Gathering the data for the array of forms
$gatherData = <<< GATHERDATA

<p>Please tell us how many of each type of registration that you need:</p>
<!-- Form begins here -->

<form action="$thisFile" method="post" name="gatherdata" enctype="multipart/form-data" >
<!-- <p><input type="textbox" size="1" name="ind" id="ind"> Individual Registration</p>
<p><input type="textbox" size="1" name="fam" id="fam"> Family Registration</p> -->
<select name="indFam"> (does not include Youth/Adult Registration or Brother/Sister Registration)
<option value="">Choose One
<option value="ind" id="ind">Individual
<option value="fam" id="fam">Family
</select><br><br>

<p><input type="textbox" size="1" name="sa" id="sa"> Self-Advocate Registration</p>
<p><input type="textbox" size="1" name="sib" id="sib"> Brother/Sister Registration</p>
<p><input type="submit" name="submit" id="submit" value="Gather the Forms"></p>
</form>
<!-- Form ends here -->
GATHERDATA;

///// Individual Form
$indForm = <<< INDFORM
<!-- Form begins here -->
<p>Individual Form</p>
<form action="$thisFile" method="post" name="indform" enctype="multipart/form-data" >

* NDSC Member? <select name="Membership Status">
<option value="">
<option value="Yes">Yes
<option value="No">No
</select><br><br>

Your Name (First) <input type="text" name="firstName" id="firstName" size="47"><br><br>
Your Name (Last) <input type="text" name="lastName" id="lastName" size="47"><br><br>
<p><input type="submit" name="submit" id="submit" value="Add This Registrant"></p>
</form>
<!-- Form ends here -->
INDFORM;

///// Family Form
$famForm = <<< FAMFORM
<!-- Form begins here -->
<p>Family Form</p>
<form action="$thisFile" method="post" name="famform" enctype="multipart/form-data" >

* NDSC Member? <select name="Membership Status">
<option value="">
<option value="Yes">Yes
<option value="No">No
</select><br><br>

Your Name (First) <input type="text" name="firstName" id="firstName" size="47"><br><br>
Your Name (Last) <input type="text" name="lastName" id="lastName" size="47"><br><br>
<p><input type="submit" name="submit" id="submit" value="Add This Registrant"></p>
</form>
<!-- Form ends here -->
FAMFORM;

///// Self-Advocate Form
$saForm = <<< SAFORM
<!-- Form begins here -->
<p>Self-Advocate Form</p>
<form action="$thisFile" method="post" name="saform" enctype="multipart/form-data" >

* NDSC Member? <select name="Membership Status">
<option value="">
<option value="Yes">Yes
<option value="No">No
</select><br><br>

Your Name (First) <input type="text" name="firstName" id="firstName" size="47"><br><br>
Your Name (Last) <input type="text" name="lastName" id="lastName" size="47"><br><br>
<p><input type="submit" name="submit" id="submit" value="Add This Registrant"></p>
</form>
<!-- Form ends here -->
SAFORM;

///// Brother/Sister Form
$sibForm = <<< SIBFORM
<!-- Form begins here -->
<p>Brother and Sister Form</p>
<form action="$thisFile" method="post" name="sibform" enctype="multipart/form-data" >

* NDSC Member? <select name="Membership Status">
<option value="">
<option value="Yes">Yes
<option value="No">No
</select><br><br>

Your Name (First) <input type="text" name="firstName" id="firstName" size="47"><br><br>
Your Name (Last) <input type="text" name="lastName" id="lastName" size="47"><br><br>
<p><input type="submit" name="submit" id="submit" value="Add This Registrant"></p>
</form>
<!-- Form ends here -->
SIBFORM;

/////////////// END form strings; BEGIN setting variables  ////////////////////

if ($_POST['submit']) {
	$indFam = $_POST['indFam'];
	$saP = $_POST['sa'];
	$sibP = $_POST['sib'];

if ($_POST['indFam'] == "ind"){
	$ind = 1;
}else{
	$ind = 0;
}

if ($_POST['indFam'] == "fam"){
	$fam = 1;
}else{
	$fam = 0;
}

$_SESSION['formlist'] = array('indFam' => $_POST['indFam'], 'sa' => $_POST['sa'], 'sib' => $_POST['sib']);
$indFam = $_SESSION['formlist']['indFam'];
$sa = $_SESSION['formlist']['sa'];
$sib = $_SESSION['formlist']['sib'];
}

/////////////////// Creating the Links /////////////////////////////

function indForm($indForm) {
  	echo $indForm;
}

function famForm($famForm) {
  	echo $famForm;
} 

function saForm($saForm, $sa) {
	echo "<br>sa var from saForm():" . $sa; /// This one does not work.
	echo $saForm;		
}

function sibForm($sibForm) {
  	echo $sibForm;
} 

if (!isset($_POST['indFam']) && !isset($_GET['func'])) {
	echo $gatherData;
} else if (isset($_POST['indFam'])) {
	$linkString = "";
	echo "<p>You selected: </p>";
		  if ($_POST['indFam'] == "ind") {
		  		$indString = "<br><a href=\"?func=indForm\">Individual Form</a><br>";
		  		echo $indString;

	  } else if ($_POST['indFam'] == "fam") {
	  		$famString = "<br><a href=\"?func=famForm\">Family Form</a><br>";
	  		echo $famString;
	  }  // End if ($_POST['indFam'] == "ind") {

	  if($sa != "" and $sa != 0){
			for ($i = 1; $i <= $sa; $i++) {
			$saString = "<br><a href=\"?func=saForm\">Self-Advocate Form #" . $i . "</a> ";
			echo $saString;
		}
	echo "<br>";
	} 

	if($sib != "" and $sib != 0){
			for ($i = 1; $i <= $sib; $i++) {
			$sibString = "<br><a href=\"?func=sibForm\">Brother and Sister Form #" . $i . "</a> ";
			echo $sibString;
			}	
	} // if($sib != "" and $sib != 0){
} // End else if (isset($_POST['indFam'])) {

echo "<br>sa before isset:" . $sa; /// This one DOES work until you click on a link.
if (isset($_GET['func'])) {
	echo "<br>sa var from right inside if isset GET:" . $GLOBALS['$sa'];  /// This one does not work.
	  if ($_GET['func'] == "indForm") {
			indForm($indForm);
	  } else if ($_GET['func'] == "famForm") {
			famForm($famForm);
	  } 

	  if ($_GET['func'] == "saForm") {
	  		echo "<br>sa var from GET:" . $sa;
	  		saForm($saForm, $sa);
	  }

	  if ($_GET['func'] == "sibForm") {
	  		sibForm($sibForm);
	  }
} // End if (!isset($_POST['indFam']) && !isset($_GET['func'])) {


////////////////// End Creating the Links ////////////////////////

foot();
?>

[tryin_to_learn]

Believe it or not, I've spent about 4 more hours trying to figure this out, and I still don't have it. I think the problem is that I'm setting some variables in a conditional that no longer exists when I need to use the variables again.

I wrote out in peudo code the spot where the problem seems to be:

[INDENT]IF (POST indfam is set) {
echo the list of links;
(This is where the variables exist that I need to pass to the GET code block below. I made them into SESSION variables, btw.)
}

IF (GET func is set (i.e., a link is clicked)) {
call the appropriate function that echoes the correct form;
(I need the variables to still exist here.)
}[/INDENT]

If I change the POST conditional to IF (3 == 3), everything else works, so somehow, the POST conditional info (the part in red above) is getting wiped out when the links are clicked.

Can someone help? I feel like I've isolated the problem, but I still can't figure out how to solve it.

If you want to see the actual code, I'll put it below. The part I pseudo-coded above is about half way through -- it's commented as "Creating the links . . . ":

<?php
session_start();
ob_start();

require_once("templates/formStrings2006.php");

head("NDSC 2006 Convention");

$thisFile = $_SERVER['PHP_SELF'];

///////////// BEGIN setting variables  ////////////////////


if ($_POST['submit']) {
	$indFam = $_POST['indFam'];
	$saP = $_POST['sa'];
	$sibP = $_POST['sib'];

if ($_POST['indFam'] == "ind"){
	$ind = 1;
}else{
	$ind = 0;
}

if ($_POST['indFam'] == "fam"){
	$fam = 1;
}else{
	$fam = 0;
}

$_SESSION['formlist'] = array('indFam' => $_POST['indFam'], 'sa' => $_POST['sa'], 'sib' => $_POST['sib']);
$indFam = $_SESSION['formlist']['indFam'];
$sa = $_SESSION['formlist']['sa'];
$sib = $_SESSION['formlist']['sib'];
}

/////////// Functions that call each form ///////////////////////

function indForm($indForm) {
  	echo $indForm;
}

function famForm($famForm) {
  	echo $famForm;
} 

function saForm($saForm) {
	echo $saForm;		
}

function sibForm($sibForm) {
  	echo $sibForm;
} 

/////// Creating the Links - The problem in the if (isset($_POST['indFam'])) part /////////

if (!isset($_POST['indFam']) && !isset($_GET['func'])) {
	echo $gatherData;
} else if (isset($_POST['indFam'])) {

echo "<p>You selected: </p>";
	  if ($_POST['indFam'] == "ind") {
	  		$indString = "<br><a href=\"?func=indForm\">Individual Form</a><br>";
	  		echo $indString;

	  } else if ($_POST['indFam'] == "fam") {
	  		$famString = "<br><a href=\"?func=famForm\">Family Form</a><br>";
	  		echo $famString;
	  }  // End if ($_POST['indFam'] == "ind") 

	  if($sa != "" and $sa != 0){
			for ($i = 1; $i <= $sa; $i++) {
			$saString = "<br><a href=\"?func=saForm\">Self-Advocate Form #" . $i . "</a> ";
			echo $saString;
		}

	echo "<br>";		
	} 

	if($sib != "" and $sib != 0){
			for ($i = 1; $i <= $sib; $i++) {
			$sibString = "<br><a href=\"?func=sibForm\">Brother and Sister Form #" . $i . "</a> ";
			echo $sibString;
			}	
	} // End if($sib != "" and $sib != 0)


} // End else if (isset($_POST['indFam'])) 

if (isset($_GET['func'])) {
	if ($_GET['func'] == "indForm") {
			indForm($indForm);
	  } else if ($_GET['func'] == "famForm") {
			famForm($famForm);
	  } 

	  if ($_GET['func'] == "saForm") {
	  		saForm($saForm);
	  }

	  if ($_GET['func'] == "sibForm") {
	  		sibForm($sibForm);
	  }
} // End if (!isset($_POST['indFam']) && !isset($_GET['func'])) {

?>