PHP Switch Statement. Free online PHP and MySQL Web Database Programming Tutorial...

The Switch statement in PHP behaves almost the same way as it behaves in C++. The switch statement is used to perform one of several different available actions based on one of several different conditions. We use this construct if we need to select and execute one of many different blocks of code. Its syntax follows:

switch (expression)
{
case label1:
code to be executed if expression = label1;
break;
case label2:
code to be executed if expression = label2;
break;
default:
code to be executed if expression is different from both label1 and label2;
}

This is how it works: • The expression written inside the switch statement i.e. switch(expression) is evaluated. This could also be a variable.
• The value of the expression is compared with the values of each of the case labels.
• If there is a match, the code associated with that case is executed.
• After the code of the match case is executed, break is used to stop the code from running into the next case.
• The default statement is used if a matching case is not found.

Example
<html>
<body>
<?php
$exp = 2;
switch ($exp)
{
case 1:
echo "Number 1";
break;
case 2:
echo "Number 2";
break;
case 3:

echo "Number 3";
break;
default:
echo "No number between 1 and 3";
}
?>
</body>
</html>

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