radio button

[rooein]

hey
how can i pass a radio buttons value to a second page, using php of course?
here is my radio botton(this is on my html page):

<input type="radio" name="whichcard" value="old">
Use card on file: {{last4}}

<input type="radio" name="whichcard" value="new">
Enter new card number

and then on the next page which is a php page I try this:
$rad = $HTTP_POST_VARS["whichcard"];

but nothing is being passed!
I just wanna figure on the next page that which radio button did the user select

please help!

Rooin.

[stolzyboy]

any time you submit a form and name an input, whatever you name it on the next page, make sure it is a php page, it will automatically create $whatever, in your case it will create $whichcard, make sure you it is in a form tag and you are using method = post

[hand]

Try it also with
$POST['whichcard']
$GET['whichcard']
$_REQUEST['whichcard']
$whichcard

(It depends on form method and the php.ini setting of register_globals http://php3.de/manual/en/printwn/security.registerglobals.php)

[stolzyboy]

yes, you are very correct, however if you are using a larger hosting company it would 95% of the time work the way i showed, they are more standardized than us sys-admin-work-on-our-own server-types

[hand]

If register_globals is set to off (You can find it out with running phpinfo()😉and you want to use simply $whichcard as variable name, you can take one of this two tricky codes and insert it at the beginning of your script

😃

$order = getenv('variables_order');
$name = array (
  'E' => '_ENV',
  'G' => '_GET',
  'P' => '_POST',
  'C' => '_COOKIE',
  'S' => '_SERVER'
);
for ($i=0; $i<strlen($order); $i++)
{
  $nn = $name[substr($order,$i,1)];
  foreach ($$nn as $k=>$v)
    $$k = $v;
}

or this

if (!empty($_GET))                   { extract($_GET); }
    else if (!empty($HTTP_GET_VARS))     { extract($HTTP_GET_VARS); }

if (!empty($_POST))                  { extract($_POST); }
else if (!empty($HTTP_POST_VARS))    { extract($HTTP_POST_VARS); }

if (!empty($_COOKIE))                { extract($_COOKIE); }
else if (!empty($HTTP_COOKIE_VARS))  { extract($HTTP_COOKIE_VARS); }

if (!empty($_ENV))                   { extract($_ENV); }
else if (!empty($HTTP_ENV_VARS))     { extract($HTTP_ENV_VARS); }

if (!empty($_SERVER))                { extract($_SERVER); }
else if (!empty($HTTP_SERVER_VARS))  { extract($HTTP_SERVER_VARS); }

if (!empty($_SESSION))               { extract($_SESSION); }
else if (!empty($HTTP_SESSION_VARS)) { extract($HTTP_SESSION_VARS); }

if (!empty($_FILES)) {
    while (list($name, $value) = each($_FILES)) {
        $$name = $value['tmp_name'];
    }
} else if (!empty($HTTP_POST_FILES)) {
    while (list($name, $value) = each($HTTP_POST_FILES)) {
        $$name = $value['tmp_name'];
    }
} // end if

... but provider don't like these hacks 😃

[PHPGuru_2700]

page_1.html ( The First Page )

<FORM ACTION="page_2.php" METHOD="post">
<INPUT TYPE="radio" NAME="age" VALUE="old">Old<BR>
<INPUT TYPE="radio" NAME="age" VALUE="new">New<BR>
<INPUT TYPE="submit" VALUE="go!">
</FORM>

page_2.php

<?
$age = $_POST["age"];

print($age);
?>

There Ya Go!