stacking switch cases

[dennismonsewicz]

Is there anyway to stack cases in PHP like you can in Javascript?

 

IE:

 

case "dog":

case "cat":

case "bird":

    DO SOMETHING

 

Where the programming will say if its all three of those cases then do the statement at the end

 

[.josh]

yes. Just don't put break; in it.

[wildteen88]

Yes that is possible, eg

 

<?php

$animal = isset($_GET['animal']) ? $_GET['animal'] : '';

switch($animal)
{
   case 'dog':
   case 'cat':
   // etc
       echo 'You requested : ' $aniaml;
   break;

  default:
      echo 'Select an animal: <a href="test.php?animal=cat">Cat</a> | <a href="test.php?animal=dog">Dog</a>';
}

 

You can also do:

    case 'dog':
       // more code here
       // PHP will execute all code here, plus the code in the next case
   case 'cat':
   // etc
       echo 'You requested : ' $aniaml;
   break;

 

basically what is happening is PHP will execute all code within a switch/case until it comes across the break; keyword.

[.josh]

To add to what wildteen said, it will execute the code if the condition evaluates true, for every condition.  It just won't skip the other condition checks if you leave out the break.  So in WT's examples, it won't execute the code if $animal != 'cat' 

[Mchl]

To add to what wildteen said, it will execute the code if the condition evaluates true, for every condition.  It just won't skip the other condition checks if you leave out the break.  So in WT's examples, it won't execute the code if $animal != 'cat' 

 

You're sure about this?

 

Because this

 

<?php

$animal = 'dog';

switch($animal)
{
    case 'dog':

    case 'cat':
    // etc
        echo 'You requested : '. $animal;
    break;

   default:
       echo "none";
}
?>

 

echoes 'You requested : dog' here

[dennismonsewicz]

yes wildteen's example works!

 

<?php

$animal = $_GET['animal'];

switch($animal)
{
    case 'dog':
    case 'cat':
    // etc
        echo 'You requested : '. $animal;
    break;

   default:
       echo "none";
}
?>

 

I modified the $animal var to GET the animal from the URL, but it works like a charm! Thanks again!

[.josh]

hmm...okay so it will not execute the script if the case evaluates false before the break, but it will after:

<?php

$animal = 'cat';

switch($animal)
{
   case 'dog': echo "dog";
   case 'cat': echo 'You requested : '. $animal;
   case 'pig' : echo "pig";
                  break;
  default:
      echo "none";
}
?>

 

That will output

 

You requested : catpig

[wildteen88]

It'll run the code from where the condition  is true (where the case matches), if animal was set to 'dog' then CV's code will return "dogcatpig"