Radio Buttons

[Guest Mr. Herriman]

I am new to html and php. How do I add radio buttons to the same group so only one can be checked at a time? Also, how do I make it interact with some php code I have written? I want it to do work based on what radio button was pressed.

[justsomeguy]

You need to give them all the same name and different values.<input type="radio" name="radioset" value="1" checked="checked"> 1<input type="radio" name="radioset" value="2"> 2<input type="radio" name="radioset" value="3"> 3In PHP, $_POST['radioset'] (or $_GET['radioset'] depending on the action) will give you the value indicated by the value attribute of whatever they chose.

[scott100]

In PHP, $_POST['radioset'] (or $_GET['radioset'] depending on the action)

Or just use this to cater for all$_REQUEST['radioset'] :)if ($_REQUEST['radioset']==1)echo "you chose 1"; elseecho "you did not choose 1";

[aspnetguy]

isn't using $_REQUEST bad? Because it looks for both get and post, the user could make a querystring variable to override your form variable and depending on your application it could be dangereous.That is what I have been told. I was told to only use $_GET and $_POST and not $_REQUEST.Is this true or is it a little paranoid?

[scott100]

Is this true or is it a little paranoid?

Depends on what your using it for i would think.

The "get" method should be used when the form is idempotent (i.e., causes no side-effects). Many database searches have no visible side-effects and make ideal applications for the "get" method.If the service associated with the processing of a form causes side effects (for example, if the form modifies a database or subscription to a service), the "post" method should be used.

http://www.w3.org/TR/REC-html40/interact/forms.html#h-17.13So don't use get or request if forms modify a database, otherwise it should be ok.In this case you would be performing a check on what radio button was checked, so if they entered another value catch this using an else statement.

[aspnetguy]

Ok that makes sense thanks.

[justsomeguy]

What I do personally is use a function I wrote that checks $_GET first, and then $_POST. So I don't even specify, and anything in $_POST will override $_GET. You can also use this function:http://www.php.net/manual/en/function.impo...t-variables.phpimport_request_variables("gp", "formvar_");

[aspnetguy]

What I do personally is use a function I wrote that checks $_GET first, and then $_POST.  So I don't even specify, and anything in $_POST will override $_GET.  You can also use this function:http://www.php.net/manual/en/function.impo...t-variables.phpimport_request_variables("gp", "formvar_");

<{POST_SNAPBACK}>

Thanks that is a great idea.