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<?php
switch (n)
{
case label1:
    code to be executed if n = label1;
    break;
case label2:
    code to be executed if n = label2;
    break;
default:
    code to be executed if n is different from both label1 and label2;
}
?>

<?php
$favcolor = "red";
switch ($favcolor)
{
case "red":
    echo "Your favorite color is red!";
    break;
case "blue":
    echo "Your favorite color is blue!";
    break;
case "green":
    echo "Your favorite color is green!";
    break;
default:
    echo "Your favorite color is neither red, blue, nor green!";
}
?>