passing php variable to html

Question

I am having a problem with passing variables. This is the code that I think should pass the $user variable to new_page.html:

if (mysqli_query($con,$newUser))
{
    $user = $_GET[username];
    header('Location: new_page.html?currentUser=$user');
}
else
{
    header('Location: sign up.html');
}

And inside the html page I try to create a link to a new page with the user variable (which has been passed in) as the text property:

<a href = "user_page.php"> <?php echo $currentUser ?><a/>

Can anyone see what I am doing wrong?

Thanks

new_page.html needs to be a PHP file too, or you'll have to use JavaScript in new_page.html to dynamtically set the href="" attribute. — Dai
– Dai, Commented Dec 17, 2013 at 23:10
a file name of "sign up.html" with a space in it is going to give you all sorts of problems... — DrCord
– DrCord, Commented Dec 17, 2013 at 23:29
If you're going to use variables in strings (such as your header line), and want the actual value rather than the name of the variable, use double quotes (") — Mark Baker
– Mark Baker, Commented Dec 17, 2013 at 23:29

Arbiter · Accepted Answer · 2013-12-17 23:24:40Z

1

You can't process PHP in a html file. You can process HTML in a PHP file - so always use the .php extension.

I think username is meant to be a post? So:

$username = $_POST['username'];
header('Location: page.php?user='.$username);

then in page.php you can use the following to collect that variable from the URL:

$username = $_GET['user'];

An important note: Note the use of concatenation to add a variable into the PHP Header function:

Instead of:

header('Location: new_page.html?currentUser=$user');

use concatenation:

header('Location: new_page.html?currentUser='.$user);

if you need more variables:

header('Location: new_page.html?currentUser='.$user.'&anothervar='.$anotherVar);

answered Dec 17, 2013 at 23:24

Arbiter

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Comments

Tim Zimmermann · Accepted Answer · 2013-12-17 23:12:45Z

0

There's a problem where you assign $user, too, the quotes are missing:

$user = $_GET['username'];

answered Dec 17, 2013 at 23:12

Tim Zimmermann

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Community · Accepted Answer · 2017-05-23 11:50:16Z

0

Change new_page.html to new_page.php and then :

Replace this line :

 <a href = "user_page.php"> <?php echo $currentUser ?><a/>

By :

 <a href = "user_page.php"> <?php echo $_GET['currentUser'] ?><a/>

An other thing , when you access this variable , it's value will be $user as string,to get it's real value , change quotes to double quotes:

header("Location: new_page.html?currentUser=$user");

See :

edited May 23, 2017 at 11:50

CommunityBot

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answered Dec 17, 2013 at 23:13

Charaf JRA

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