Pleas help: really stuck: radio buttons & arrays

Cheers

Hi there,

I've been searching thru the archives and on google for information which fits in with what I am trying to achieve but I'm either not computing what I'm reading or getting lost in the complexity of what it is that I'm aiming for!

Here is what I am trying to do.

I am selecting from a MYSQL table 'descriptions' x values (where x is total rows and UID for the row) and looping thru them to create a HTML form which looks like this (SHORT HAND)..

(NOT ACCURATE PHP! - just for explanation purposes)

for ($x=1; $x<=$recordcount; $x++) {
<input type=radio name =$x value=-3>
<input type=radio name =$x value=-2>
<input type=radio name =$x value=-1>
description $x
<input type=radio name =$x value=1>
<input type=radio name =$x value=2>
<input type=radio name =$x value=3>
}

etc etc.

I seem to have no problem in creating the HTML. I hit my snag when I am trying to evaluate and process the submitted values.

How do I evaluate the values from x -> total x?
Someone has suggested using an array but I have no experience of doing things this way as yet.

Could someone please explain in lamens terms how I go through each of the total x radio buttons and evaluate the value which the user has selected.

Any help using arrays or otherwise MUCH appreciated

Thanks

maybl8r03

Try this code...

<html>
<body>
<form action="?" method="POST">
<?php
	echo "<table><tr><td>";
	for ($x=1; $x < 10; $x++)
	{
		echo "<input type=\"radio\" name=\"radio[]\" value=\"{$x}\" ". (@in_array($x, $_POST["radio"]) ? " checked=\"checked\"":""). " />{$x}<br />";
	}
	echo "</td><td>";
	for ($x=1; $x < 10; $x++)
	{
		echo "<input type=\"checkbox\" name=\"checkboxes[]\" value=\"{$x}\" ". (@in_array($x, $_POST["checkboxes"]) ? " checked=\"checked\"":""). " />{$x}<br />";
	}
	echo "</td></tr>";
	echo "<tr><td>";
	@reset($_POST["radio"]);
	while (list($x, $y) = @each($_POST["radio"])) 
	{
		echo "Radio button: {$y}<br />";
	}
	echo "</td><td>";
	@reset($_POST["checkboxes"]);
	while (list($x, $y) = @each($_POST["checkboxes"])) 
	{
		echo "Check boxes: {$y}<br />";
	}
	echo "</td></tr></table>";
?>
<input type="submit" />
</form>
</body>
</html>

Cheers

Thanks for the reply maybl8r03!

But my form looks a bit more like this...

<html> 
<body> 
<form action="?" method="POST"> 
<?php 
    echo "<table border=1><tr><td align=right>DISLIKE</td><td></td><td>LIKE</td></tr>\n"; 
    for ($x=1; $x<=20; $x++) {
    echo "<tr><td>";
		for ($j=-5; $j<=-1; $j++) {
        echo "<input type=\"radio\" name=\"radio{$x}[]\" value=\"{$j}\" ". (@in_array($x, $_POST["radio"]) ? " checked=\"checked\"":"").">{$j}"; 
		}
    echo "</td><td>&nbsp;&nbsp;&nbsp;item{$x}&nbsp;&nbsp;&nbsp;</td><td>\n";
		for ($j=1; $j<=5; $j++) {
        echo "<input type=\"radio\" name=\"radio{$x}[]\" value=\"{$j}\" ". (@in_array($x, $_POST["radio"]) ? " checked=\"checked\"":"").">{$j}"; 
    } 
	echo "</td></tr>";
    } 
    echo "<tr><td>"; 
    @reset($_POST["radio"]); 
    while (list($j, $y) = @each($_POST["radio"]))  

    { 
        echo "Radio button: {$y}<br>"; 
    } 
    echo "</td></tr></table>"; 
?> 
<input type="submit" /> 
</form> 
</body> 
</html>

I think I've added another dimension to the situation, I have multiple radio buttons on one page each one has a range of values.

Still struggling to know how I get to a point where I can evaluate them all?

Can't quite work out the bottom half of the script where it echos back the values, still learning about arrays. 😕

Thanks for your help

Gary

planetsim

Can i just comment on your @ signs..

Why does it need to be used on an in_arrary();

From what i see this is still in the development stage. So i dont suggest using an @ sign unless you know the function doesnt work on your setup but will elsewhere e.g. mail();

Also action="?" why do you have ? mark there your not using the GET method.

maybl8r03

Re: @

Bad habit on my side I suppose. I have E_ALL on error reporting on the development machines so the silence doesn't really matter. It's only in our client's server that it actually muffles (E_ALL ~E_NOTICE) but you are correct to point out that in development stages silencers should be left out.

Re ?

Browsers (not all) tend to be rather intelligent in figuring out the form return name. If you leave it blank, the form would assume the URL to handle the POST/GET call. You can insert stuff like PHP_SELF here or your wrapper script name as well.

Cheers

Still struggling to know how I get to a point where I can evaluate them all?

Can't quite work out the bottom half of the script where it echos back the values.

Can anyone help please?