Checkbox Troubles

dunnomenaime

I am having a rather difficult time with checkboxes and radio buttons. My page has two forms on it. The first form is coded mostly in html with the relevant part shown below:

<td width="105"><input type="checkbox" name="cropmarks" value="T">Crop Marks</td>
<td width="73"><input type="checkbox" name="tiled" value="T">Tiling</td>
<td width="93"><input type="checkbox" name="trimmarks" value="T">Trim Marks</td>
<td width="148"><input type="checkbox" name="printguides" value="T">Print Guides </td>

The second form is reached through a button that calculates the total cost (it is a print site) and needs to reflect options the user chose in the first form. Here is the code for the second form:

<td width="97"><input type="checkbox" name="cropmarks" value="T" <?php if($POST['cropmarks'] == 'T') echo 'checked';?>>Crop Marks</td>
<td width="76"><input type="checkbox" name="tiled" value="T" <?php if($POST['tiled'] == 'T') echo 'checked';?>>Tiling</td>
<td width="90"><input type="checkbox" name="trimmarks" value="T" <?php if($POST['trimmarks'] == 'on') echo 'checked';?>>Trim Marks</td>
<td width="142"><input type="checkbox" name="printguides" value="T" <?php if($POST['printguides'] == 'on') echo 'checked';?>>Print Guides</td>

This should in my understanding pass the value 'checked' into each checkbox that was checked on form 1. But it doesn't. What is the correct way to do this?

etully

You are checking the $_POST variable. Your form is probably sending via the GET method which is the default if you don't specify.

Personally, I use $_REQUEST['cropmarks'] instead. I loaded your code and it worked except for one thing: Of your four IF statements, the last two are checking to see if the value is "on" but you changed it to "T" so they don't match.

dunnomenaime

I fixed the T vs. on value thing and also tried $REQUEST instead of $POST to no avail. The checkboxes don't seem to want to stay checked. If there another method I could use?

etully

You could try switching it back to $_POST and then in the HTML form, be sure to include: method="post"

But you shouldn't have to do that. $_REQUEST should work fine.

So the problem seems to be that variables aren't getting passed from the first page to the 2nd page so for troubleshooting purposes, simplify everything.

Make one page like this:

<form action="page2.php" method="post">
<input type=checkbox name="cropmarks" value="X"> Cropmarks
<input type=submit value="go">
</form>

and then page2.php does this:

<?

$x = $_POST['cropmarks'];
print "x is set to: $x";
?>

Run that and see if you can get $x to get its value from $POST... or $REQUEST. Once you're confident that you can pass and receive variables from page to page, then you can move onto the next step of checking the variables to see if they are == "T".

Do you have any other pages that you've written that do successfully pass variables from page to page? If so, are you using $POST ? $REQUEST ? Whatever works, do it the same way here.

Houdini

use this method

<td width="105"><input type="checkbox" name="print[cropmarks]" value="T">Crop Marks</td>
<td width="73"><input type="checkbox" name="print[tiled]" value="T">Tiling</td>
<td width="93"><input type="checkbox" name="print[trimmarks]" value="T">Trim Marks</td>
<td width="148"><input type="checkbox" name="print[printguides]" value="T">Print Guides </td>

Then if your process php (page2.php) do this

//Create some short variables
$cropmarks = $_POST['print']['cropmarks'];//=T is checked or blank if not
$tiled =$_POST['print']['tiled'];//=T is checked or blank if not
$trimmarks = $_POST['print']['trimmarks'];//=T is checked or blank if not
$printguides = $_POST['print']['printquides'];//=T is checked or blank if not
if(isset($cropmarks))echo "Crop marks have been selected.<br />";
if(isset($tiled))echo "Tiled has been selected.<br />";
if(isset($trimmarks))echo "Trim marks have been selected.<br />";
if(isset($printguides))echo "Print guides have been selected.<br />";

dunnomenaime

I've been able to verify that the value "T" is successfully being passed from form 1 to form 2. When I did <?php print $_POST['cropmarks'];?> it printed out T. So the problem must be something to do with it being equal to T or how the 'checked' value is being passed into the checkbox attributes. Any ideas?

Houdini

You could just use the logic from the post I made but in your code for the send set of values you are checking for 'on' when the box of those were checked it would be 'T' so those two would never be 'on' they would only be blank or 'T'