Radio button how to?

what i want to do is that when you vote Y or N (two different radio buttons) and then it inserts into the "vote" column(in database) = Y or N(what you pickd), if nothing then echo error.

I know how to do this like halfway, i never worked with radiobuttons before so i need you guys.

Here's a two radio 开发者_Python百科button right:

Yes: <input type="radio" value="Y" id="voteYes" name="vote"></input>  <br>
No: <input type="radio" value="N" id="voteNo" name="vote"> </input>

I gave the value N and Y, not the same ID, but the same name. I think its right, but how should i do with the PHP part of what i want to do? I mean shall i call for "vote"? ($_GET["vote"]) i dont think so.. here's where im stuck

You're almost there. Depending on whether or not your form uses the GET or POST method, you'll have to change the variable name appropriately.

if(isset($_GET["vote"])) //checks to see if the user inputed something
{
    $value = $_GET["vote"]; //remember, this value is not guaranteed to be either Y or N
}
else
{
    //display your error
}

Why not? Just make sure you validate your data... make sure $_GET['vote'] must be an element of array('Y', 'N'), if true you insert it, else echo error and you're done.

POST variables are found in $_POST.

echo $_POST['vote'];

It depends on the method used. If you POST the form, then the variable will be $_POST['vote'], if you GET the form (default) then it will be $_GET['vote'].

Specify the method used in the form tag:

<form action="foo.php" method="POST">

or...

<form action="foo.php" method="GET">

Check for the existance of the variable either with isset() or array_key_exists().