[SOLVED] need help on switch

[skyagh]

switch ($_GET['show'])
{
case "home":
	$Board->T->pparse('home');
	break;
case 'contact':
    		$Board->T->pparse('contact');
	break;
case "portfolio":
	$Board->T->pparse('portfolio');
	break;
default:
	$Board->T->pparse('home');
	break;
}

Notice: Undefined index: show in C:\Program Files\xampp\htdocs\project\index.php on line 62

I have got a notice of the above code when show is equal to null. case NULL: don't works in that particular case. The notice will not show when something like index.php?show=contact is being casted. I tried to use switch(isset($_GET['show'])) as a solution and the notice does not appear anymore but all the case does not work and not even integers.

[trq]

<?php

if (isset($_GET['show'])) {
  switch ($_GET['show']) {
    case "home":
      $Board->T->pparse('home');
      break;
    case 'contact':
      $Board->T->pparse('contact');
      break;
    case "portfolio":
      $Board->T->pparse('portfolio');
      break;
    default:
      $Board->T->pparse('home');
      break;
} else {
  $Board->T->pparse('home');
}

?>

[radalin]

That notice is shown because of your error_reporting() check the manaul for it's values. That's not an error. So it will not cause any problem, it will just show an annoying notice message at top.

 

you may try to use null (lowercase) which might work.

[wildteen88]

Notice: Undefined index: show in C:\Program Files\xampp\htdocs\project\index.php on line 62

I have got a notice of the above code when show is equal to null. case NULL: don't works in that particular case. The notice will not show when something like index.php?show=contact is being casted. I tried to use switch(isset($_GET['show'])) as a solution and the notice does not appear anymore but all the case does not work and not even integers.

When PHP shows a notice: undefined index. It means the that that the index (the index is defined within the [] brackets) you have defined does not exist. What you should do is check if it exists first before using the index. To check whether it is exists refer to thorpe's code.

 

Always check to see if _GET, _POST and _COOKIE variables exists first before using them.

[skyagh]

Thanks wildteen for the explanation. Clearly understood. & Thanks thorpe for the coding help.