From: [EMAIL PROTECTED]
Operating system: Windows 2000 Pro
PHP version: 4.1.0
PHP Bug Type: Variables related
Bug description: $HTTP_POST_VARS not finding all posted variables
- Win2K Pro, running Apache 1.3.22 (standard Win32 setup)
- PHP 4.1.0, Win32 Binaries -- no changes to ini file (except "include_path
=" and "SMTP ="
- WHAT I DID:
I created a simple html form with the "POST" method:
<html>
<body>
<form action="test1.php" method="post">
<input type="radio" name="radiobutton" value="True">True
<input type="radio" name="radiobutton" value="False">False
<input type="submit" name="submitbutton" value="Submit">
</form>
</body>
</html>
Next I created "test1.php" to receive those posted variables (as you can
see I tried several methods of checking them):
<?
foreach ($HTTP_POST_VARS as $var => $value) {
echo "$var = $value<br>\n";
}
echo "<P>Values submitted via POST method:<br>";
reset ($HTTP_POST_VARS);
while (list ($key, $val) = each ($HTTP_POST_VARS)) {
echo "$key => $val<br>";
}
?>
- WHAT I WANTED TO HAPPEN:
I wanted to use the $HTTP_POST_VARS array to validate the form. If the end
user forgets to select one of the radio button options, that should show up
in $HTTP_POST_VARS as a variable with a "" value, which would allow me to
post a validation error message to the user.
- WHAT ACTUALLY HAPPENED:
If the end user forgets to select one of the radio options, the posted
variable doesn't show up in $HTTP_POST_VARS !!
The output of the php script is:
// begin test1.php output (with no radio button selected):
submitbutton = Submit
Values submitted via POST method:
submitbutton => Submit
// end test1.php output
If one of the buttons is pre-selected, it will show up as a variable in the
$HTTP_POST_VARS. Here is the output:
//begin test1.php output (with radio button selected):
radiobutton = False
submitbutton = Submit
Values submitted via POST method:
radiobutton => False
submitbutton => Submit
// end test1.php output (with radio button pre-selected)
-WHY THIS IS A SERIOUS PROBLEM:
As I'm sure you can imagine, this makes it impossible to create a generic
validation script that is capable of validating radio buttons.
If I create a simple $radiobutton variable (the same name as the form
input), It will work to validate the form if the user has not remembered to
select a radio button.
But this will require me to manually validate radio buttons in my script,
rather than being able to create and use a generic validation script. I've
created a generic script in ASP that uses the "request.form" method to
validate all form fields and it works properly with radio buttons.
Also, I've tested the $HTTP_POST_VARS array with all other input types, and
it finds all other posted variables, even if they are blank.
What can I do?
--
Edit bug report at: http://bugs.php.net/?id=14674&edit=1
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