How to use switch with form input

[leighjor]

Hi I want to display result from db, depending on which input I get from form.
Im trying to use switch so that if input is from 'formb' there is case var=@$_GET ['b']. Can some one help with the syntax. THanks in advance

<form name="form" action="aseinput.php" method="get">
<input type="text" name="a" />
<input type="submit" name="Submit" value="Search" />
</form>
<form name="formb" action="aseinput.php" method="get">
<input type="text" name="b" />
<input type="submit" name="Submit" value="Search" />
</form>
<form name="formc" action="aseinput.php" method="get">
<input type="text" name="c" />
<input type="submit" name="Submit" value="Search" />
</form>
<?php
rough code
in here i want to put switch
so that if input ='a'
case $var = @$GET['a']
do stuff with 'a';
if input = 'b'
case $var = @$GET ['b']
do stuff with 'b';

?>

[dagon]

since your not checking one var against may possible values your better of using a set of if\else statements

if(!empty($_GET['a'])){
//
}elseif(!empty($_GET['b'])){

}elseif(!empty($_GET['c'])){

}else{

}

3 forms is ugly, why not make the a,b,c one form input then the text field.