passing variables between pages

silly

I am having trouble being able to pass varaibles between pages. I want to use the post method so I don't have to use cookies. Here is the scenario:

A person creates a project which causes PHP to make a folder for them on my server........that is done in two pages. The first they fill in a field that has the name "foldername" I use $foldername=$post('foldername') in the second page to tell it what name to give the folder. Now the third page allows them to upload files to that folder.....Here is the problem. I need to be able to tell the upload script what the name of the folder is. but the $foldername=$post('foldername') does not return a value.

I tried using <INPUT TYPE="hidden" name="ProjectName" value="$_POST['foldername']" > but that did not help either.

Is there anyone who can help me with this.

Basicly I want to pass a variable along multiple pages with teh post method.

Sneef

Make sure you submit the form in which you have the hidden field. If you've done that, try defining a var for $POST['x'] (ie: $var = $POST['var']; before using your hidden field)

AcousticJames

First off, have you looked at using sessions? It's a convenient way to pass variables among pages.

But what you want to do is this. If your HTML is being written statically to the page (i.e. you're not inside <?php and ?> tags, then you echo it like so:

<INPUT TYPE="hidden" name="ProjectName" value="<?php echo $_POST['foldername']; ?>">

Now, when you submit the form, you will have a POST variable named "ProjectName" with the value of the foldername in it.

If you are inside php tags and you're echoing your HTML to the page, then it should work as you have it written. All you have to do is make sure your quotes are correctly escaped, like so:


<?php

echo "<INPUT TYPE=\"hidden\" name=\"ProjectName\" value=\"$_POST['foldername']\">"
?>

Could also use sprintf if you're inside your php tags:

<?php

sprintf("INPUT TYPE=\"hidden\" name=\"ProjectName\" value=\"%s\">", $_POST['foldername']);
?>

As you can see, there are a number of ways to do this. But if you have a variable or set of variables that you need to have access to, look into using sessions. It's a lot easier than keeping track of whether or not you sent something with POST all the time. Stick it in there once and your done. Hope that helps!

When all else fails, dump your POST array to the screen right away to see what you've got in there.


print_r($_POST);

If you don't see something in there that shouldn't be, then you know there's an issue with the form on the previous page. This has helped me several times.

James

silly

Thanks guys for your help. I do appreciate it. I have tried the suggestions and it still is not working. I think something else must be wrong.

I have been using echo on the thrid page to try and have it spell out the contents of the variables but they are empty on the third.......which makes me think my button is not causing the information to post to the second page. below is a copy and past of the second and third pages. Maybe this will help.

<html>
<head>
<meta http-equiv="Content-Language" content="en-us">
<title>Folder Setup page </title>
<meta name="Microsoft Theme" content="network 011, default">
</head>
<body>
<p> </p>
<form name="form1" method="post" action="addimg.php">
<INPUT TYPE="hidden" name="ProjectName" value=<? $_POST['foldername']?> >
<INPUT TYPE="hidden" name="website" value="help">
<?

creates a folder from previous page

$FolderName = $POST['foldername'];
echo $FolderName;
mkdir($FolderName);
echo "Project folder for ", $FolderName, " has been created.";
echo $FolderName;
echo $ProjectName;
sprintf("INPUT TYPE=\"hidden\" name=\"ProjectName\" value=\"%s\">", $POST['foldername']);
?>
Welcome <?php echo $_POST["foldername"];?>
<input type="submit" name="Submit" value="Click here to continue to file upload page">
</form>
<p> </p>
</body>
</html>

__________page I am passing variables too.------------------

<html>
<head>
<title>Multiple image upload script from plus2net.com</title>
</head>
<body bgcolor="#ffffff" text="#000000" link="#0000ff" vlink="#800080" alink="#ff0000">
<?
$FolderName = $POST['foldername'];
$website = $POST['website'];
$ProjectName =$_Post['ProjectName'];
echo "folder directory is " .$FolderName;
echo $website;
echo $ProjectName;
$max_no_img=10; // Maximum number of images value to be set here
echo "<form method=post action=addimgck.php enctype='multipart/form-data'>";
echo "<table border='0' width='400' cellspacing='0' cellpadding='0' align=center>";
for($i=1; $i<=$max_no_img; $i++){
echo "<tr><td>Images $i</td><td>
<input type=file name='images[]' class='bginput'></td></tr>";
}
echo "<tr><td colspan=2 align=center><input type=submit value='Add Image'></td></tr>";
echo "</form> </table>";
?>

</body>

</html>