How can I read values from my radio buttons?

[markyoung1984]

I have a form in HTML with some radio buttons on it. When I click the submit button I want some PHP code to investigate the form's submitted contents and then act upon it accordingly. Example of my form is below:

<form action="<?=markForm()?>" method="post">

<input type=radio name="Q1" value="1" <?=$Q1Ans = 1?>> Option1 <br>
<input type=radio name="Q1" value="2" <?=$Q1Ans = 2?>> Option2 <br>

<input name="submit" type="button" value="Mark my test">
</form>

I want the markForm() function to be called when the submit button is clicked. In this function I want to see which radio button was clicked using the variable $Q1Ans. At the end of this markForm() function I want to navigate to another HTML page, how do I do this? I am a complete novice at PHP so please be patient with me. Thanks.

[laserlight]

<?php
// has submit button been clicked?
if (isset($_POST['submit']))
{
	markForm();
}

if (isset($_POST['Q1Ans']))
{
	$Q1Ans = $_POST['Q1Ans'];
}
else
{
	$Q1Ans = '';
}
?>

<form action="<?php echo $_SERVER['PHP_SELF']; ?>" method="post">
<input type=radio name="Q1Ans" value="1"<?php
if ($Q1Ans == '1')
	echo ' checked="checked"';
?> /> Option1 <br>
<input type=radio name="Q1" value="2"<?php
if ($Q1Ans == '2')
	echo ' checked="checked"';
?> /> Option2 <br>

<input name="submit" type="button" value="Mark my test" />
</form>

If you want a little more spoonfeeding than that, you should have posted this in Newbies.

[bogu]

I think for this problem u should let PHP alone and look for javascript ...