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 
  1.  
  2. session_start();
  3. 	include_once('functionProgram.inc');
  4. 	if (!isset($_SESSION['pointer'])) 
  5. 			{$_SESSION['pointer']=0;} 
  6. 			displayStyles('<center><b><h1>MENU PROGRAMU</h1><b></center><br><br><br><br><br><br><br><br>'); // Wyświetlamy style
  7. 			startForm('control.php'); 
  8. 			menu(); 
  9. 			endForm();
[PHP] pobierz, plaintext


Kolejny krok to control.php

[PHP] pobierz, plaintext 
  1. session_start();
  2. include_once('functionProgram.inc');
  3. include_once('libDB.inc');
  4. if(isset($_POST['menu'])) 
  5. {
  6. 	switch($_POST['menu'])  
  7. 	{
  8. 	case"wyswietl":
  9. 		header('Location: $displayData.php');
  10. 		exit();
  11. 	case "edytuj": 
  12. 		header('Location: editData.php');break;
  13. 	case "usuwanie": 
  14. 		header("Location: delData.php");break;
  15. 	case "wpisywanie":
  16. 		header('Location: insertData.php');break;
  17. 	case "koniec":
  18. 		header('Location: exitProgram.php');break;
  19. 	default: 
  20. 		echo "MESSAGE: błąd operacji<br/>";break;
  21. 	} 
  22. }else if(isset($_POST['wyswietl'])) 
  23. {
  24. 	switch ($_POST['wyswietl']) 
  25. 	{
  26. 	case "first": 
  27. 		$_SESSION['pointer']=0;
  28. 		header("Location: displayData.php");break;
  29. 	case "next":
  30. 		if($_SESSION['pointer']<$_SESSION['lenght']-1){$_SESSION['pointer']++;}
  31. 		header("Location: displayData.php");break;
  32. 	case "prev":
  33. 		if($_SESSION['pointer']>0){$_SESSION['pointer']--;}
  34. 		header("Location: displayData.php");break;
  35. 	case "last":
  36. 		$_SESSION['pointer']=$_SESSION['lenght']-1;
  37. 		header("Location: displayData.php");break;
  38. 	case "menu": 
  39. 		header("Location: startProgram.php");break;
  40. 	default:
  41. 		echo "MESSAGE: błąd operacji<br/>";break;
  42. 	}
  43. }else if(isset($_POST['edit']))
  44. {
  45. 	switch ($_POST['edit']) 
  46. 	{
  47. 	case "first": 
  48. 		$_SESSION['pointer']=0; 
  49. 		header("Location: editData.php");break;
  50. 	case "next":
  51. 		if($_SESSION['pointer']<$_SESSION['lenght']-1){$_SESSION['pointer']++;}
  52. 		header("Location: editData.php");break;
  53. 	case "prev": 
  54. 		if($_SESSION['pointer']>0){$_SESSION['pointer']--;}
  55. 		header("Location: editData.php");break;
  56. 	case "last": 
  57. 		$_SESSION['pointer']=$_SESSION['lenght']-1;
  58. 		header("Location: editData.php");break;
  59. 	case "ok": 
  60. 		if($_SESSION['lenght']>0)
  61. 		{
  62. 		 	fetchData($data,$label,$select); 
  63. 		 	$dataOld=$data; 
  64. 		 	if (validateData($data)) 
  65. 			{setData('student','miasto',$label,$data,$select);} 
  66. 		}  
  67. 		header("Location: editData.php");break;
  68. 	case "menu":
  69. 		header("Location: startProgram.php");break;
  70. 	default: 
  71. 		echo "MESSAGE: błąd operacji<br/>";break;
  72. 	} 
  73. }else if(isset($_POST['insert']))
  74. {
  75. 	switch ($_POST['insert']) 
  76. 	{
  77. 	case "insert": 
  78. 		fetchData($data,$label,$select); 
  79. 		if (validateData($data)) 
  80. 		{insertData($data,$label,'student','miasto',$select);} 	
  81. 		header("Location: insertData.php");break; 
  82. 	case "menu": 
  83. 		header("Location: startProgram.php");break;
  84. 	default: 
  85. 		echo "MESSAGE: błąd operacji<br/>";break;
  86. 	} // end switch	($_POST['insert'])
  87. }else if(isset($_POST['delete']))
  88. {
  89. 	switch ($_POST['delete'])  
  90. 	{
  91. 	case "first": 
  92. 		$_SESSION['pointer']=0;
  93. 		header("Location: delData.php");break;
  94. 	case "next": 
  95. 		if($_SESSION['pointer']<$_SESSION['lenght']-1){$_SESSION['pointer']++;}
  96. 		header("Location: delData.php");break;
  97. 	case "prev":
  98. 		if($_SESSION['pointer']>0){$_SESSION['pointer']--;}
  99. 		header("Location: delData.php");break;
  100. 	case "last":
  101. 		$_SESSION['pointer']=$_SESSION['lenght']-1;
  102. 		header("Location: delData.php");break;
  103. 	case "delete":
  104. 		if($_SESSION['lenght']>0) 
  105. 		{
  106. 			fetchData($data,$label,$select); 
  107. 			deleteData('student',$label); 
  108. 		}
  109. 		header("Location: delData.php");break;
  110. 	case "menu": 
  111. 		header("Location: startProgram.php");break;
  112. 	default: 
  113. 		echo "MESSAGE: błąd operacji<br/>";break;
  114. 	} 
  115. }else if(isset($_POST['exit']))
  116. {
  117. 	switch ($_POST['exit']) 
  118. 	{
  119. 	case "exit": 
  120. 		session_destroy();
  121. 		header("Location: startProgram.php");break;
  122. 	default: 
  123. 		echo "MESSAGE: błąd operacji<br/>";break;
  124. 	} 
  125. } 
  126.  
[PHP] pobierz, plaintext


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