Problems with PHP in Mandrake 9.1

nvargas · 10-19-2003, 01:33 PM

Hi,

I've been working with Quanta, PHP & Apache since version 8.1 and had no problems before.

Right now, I'm developing a simple mailing form with Mandrake 9.1 and it doesn't seem to pass the variables to the script.

I made a simple script for testing purposes and it still doesn't work.

This is the script:

<?PHP

echo phpinfo();
echo "<HTML><BODY><FORM ACTION =\"prueba.php\" method=\"POST\">\n";
if(empty($textoprueba))
echo "Prueba: <INPUT TYPE=\"text\" NAME=\"textoprueba\" SIZE =15 MAXLENGTH=15>\n";
else
echo "Prueba: <INPUT TYPE=\"text\" NAME=\"textoprueba\" SIZE =15 MAXLENGTH=15 VALUE=\"$textoprueba\">\n";
echo "Texto Prueba: $textoprueba";
echo "<INPUT TYPE=\"submit\" name=\"enviar\" value=\"Enviar\">\n";
echo "</form></body></html>";
?>

Whenever I send the form, phpinfo reports the query string as
prueba.php?textoprueba=Prueba&Enviar=enviar
but it processes the query as if textoprueba was empty (see script).

Any help will be greatly appreciated.

g00$e · 10-19-2003, 05:09 PM

It appears you are missing some curly braces { } which for some reason show up as brackets in the PHP code option.

PHP Code:



<?PHP
 
echo phpinfo();
echo "<HTML><BODY><FORM ACTION =\"prueba.php\" method=\"POST\">\n";
if(empty($textoprueba)) {
echo "Prueba: <INPUT TYPE=\"text\" NAME=\"textoprueba\" SIZE =15 MAXLENGTH=15>\n";
} else {
echo "Prueba: <INPUT TYPE=\"text\" NAME=\"textoprueba\" SIZE =15 MAXLENGTH=15 VALUE=\"$textoprueba\">\n";
echo "Texto Prueba: $textoprueba";
}
echo "<INPUT TYPE=\"submit\" name=\"enviar\" value=\"Enviar\">\n";
echo "</form></body></html>";
?>

nvargas · 10-19-2003, 05:20 PM

nope, that's not it....

nvargas · 10-19-2003, 08:16 PM

Hi,

I found the answer somewhere else and here it is, hope it is useful to someone else

That is because GET/POST variables are not set in the global scope by default in PHP in newer installs. It was changed starting on version 4 I think.

You need to access the variable like this

echo $_GET['text'];

or if it came from a POST form ...

echo $_POST['text'];

it is $_POST['name'] //notice the underscore

You can turn register_globals on in php.ini and have the variables registered automatically, but it isn't a good idea.

Registering globals is a potential security risk. There is a reason the php consortium decided to discontinue the convenience. I say get in the habit of using your superglobals:

$_POST & $_GET. Only grab the vars you need.

ex.
$var=$_POST['var'];

I recommend adopting this style for all your future scripts. For old scripts, I say if you don't want to bother fixing them, and I don't blame you, throw these lines at the top of each script:

extract($_POST);
extract($_GET);
$PHP_SELF=$_SERVER['PHP_SELF'];

The order of POST and GET in the above might matter if you like to submit forms with query strings in the action.

This will also make your scripts more portable if you have to move them to a server where you don't get to edit the php.ini file.

azornoz · 10-26-2003, 05:54 PM

Gracias hermano, me has hecho un gran favor, tengo un libro de php de hace un par de años y me estaba volviendo loco con los forms get and post.

Thanks to nvargas.
Saludos a la gente de Nicaragua.