[PostgreSQL][PHP]Header nie działa-biała strona Opcje

[poliocertes]

Od wykładowcy dostaliśmy plik, na którym mamy się zorientować o co chodzi z php+sql. Niestety kod nie działa. Mam plik startProgram.php, który wyświetla mi menu.

[PHP] pobierz, plaintext 
 
session_start();
	include_once('functionProgram.inc');
	if (!isset($_SESSION['pointer'])) 
			{$_SESSION['pointer']=0;} 
			displayStyles('<center><b><h1>MENU PROGRAMU</h1><b></center><br><br><br><br><br><br><br><br>'); // Wyświetlamy style
			startForm('control.php'); 
			menu(); 
			endForm();
[PHP] pobierz, plaintext 

Kolejny krok to control.php

[PHP] pobierz, plaintext 
session_start();
include_once('functionProgram.inc');
include_once('libDB.inc');
if(isset($_POST['menu'])) 
{
	switch($_POST['menu'])  
	{
	case"wyswietl":
		header('Location: $displayData.php');
		exit();
	case "edytuj": 
		header('Location: editData.php');break;
	case "usuwanie": 
		header("Location: delData.php");break;
	case "wpisywanie":
		header('Location: insertData.php');break;
	case "koniec":
		header('Location: exitProgram.php');break;
	default: 
		echo "MESSAGE: błąd operacji<br/>";break;
	} 
}else if(isset($_POST['wyswietl'])) 
{
	switch ($_POST['wyswietl']) 
	{
	case "first": 
		$_SESSION['pointer']=0;
		header("Location: displayData.php");break;
	case "next":
		if($_SESSION['pointer']<$_SESSION['lenght']-1){$_SESSION['pointer']++;}
		header("Location: displayData.php");break;
	case "prev":
		if($_SESSION['pointer']>0){$_SESSION['pointer']--;}
		header("Location: displayData.php");break;
	case "last":
		$_SESSION['pointer']=$_SESSION['lenght']-1;
		header("Location: displayData.php");break;
	case "menu": 
		header("Location: startProgram.php");break;
	default:
		echo "MESSAGE: błąd operacji<br/>";break;
	}
}else if(isset($_POST['edit']))
{
	switch ($_POST['edit']) 
	{
	case "first": 
		$_SESSION['pointer']=0; 
		header("Location: editData.php");break;
	case "next":
		if($_SESSION['pointer']<$_SESSION['lenght']-1){$_SESSION['pointer']++;}
		header("Location: editData.php");break;
	case "prev": 
		if($_SESSION['pointer']>0){$_SESSION['pointer']--;}
		header("Location: editData.php");break;
	case "last": 
		$_SESSION['pointer']=$_SESSION['lenght']-1;
		header("Location: editData.php");break;
	case "ok": 
		if($_SESSION['lenght']>0)
		{
		 	fetchData($data,$label,$select); 
		 	$dataOld=$data; 
		 	if (validateData($data)) 
			{setData('student','miasto',$label,$data,$select);} 
		}  
		header("Location: editData.php");break;
	case "menu":
		header("Location: startProgram.php");break;
	default: 
		echo "MESSAGE: błąd operacji<br/>";break;
	} 
}else if(isset($_POST['insert']))
{
	switch ($_POST['insert']) 
	{
	case "insert": 
		fetchData($data,$label,$select); 
		if (validateData($data)) 
		{insertData($data,$label,'student','miasto',$select);} 	
		header("Location: insertData.php");break; 
	case "menu": 
		header("Location: startProgram.php");break;
	default: 
		echo "MESSAGE: błąd operacji<br/>";break;
	} // end switch	($_POST['insert'])
}else if(isset($_POST['delete']))
{
	switch ($_POST['delete'])  
	{
	case "first": 
		$_SESSION['pointer']=0;
		header("Location: delData.php");break;
	case "next": 
		if($_SESSION['pointer']<$_SESSION['lenght']-1){$_SESSION['pointer']++;}
		header("Location: delData.php");break;
	case "prev":
		if($_SESSION['pointer']>0){$_SESSION['pointer']--;}
		header("Location: delData.php");break;
	case "last":
		$_SESSION['pointer']=$_SESSION['lenght']-1;
		header("Location: delData.php");break;
	case "delete":
		if($_SESSION['lenght']>0) 
		{
			fetchData($data,$label,$select); 
			deleteData('student',$label); 
		}
		header("Location: delData.php");break;
	case "menu": 
		header("Location: startProgram.php");break;
	default: 
		echo "MESSAGE: błąd operacji<br/>";break;
	} 
}else if(isset($_POST['exit']))
{
	switch ($_POST['exit']) 
	{
	case "exit": 
		session_destroy();
		header("Location: startProgram.php");break;
	default: 
		echo "MESSAGE: błąd operacji<br/>";break;
	} 
} 
 
[PHP] pobierz, plaintext 

Wybranie czegokowiek z wyświetlanego menu skutkuje białym ekranem. Ja błedu niestety znaleźć nie umiem. Czyżby celowo coś było pomylone?

Ten post edytował poliocertes 1.02.2013, 18:33:00