PHP form results $PHP_self is blank

[jamina1]

I'm redesigning my company's website, and I've run across a problem.

I installed PHP on our webserver, and phpinfo shows up just fine! Problem is that when I try to use the page I designed as a feedback form, it fails to get a value for $PHP_SELF. Even when explicitly defined with the complete url (http://thisserver.com/thisisthephpdoc.php) it DOESN'T WORK.

What really sucks is that the form WORKS on my own webserver (which I didn't set up). So it has to be some setting in PHP on this server.

I have the form defined as a variable in the php document itself. Anyway, here's where its called.

Code: Select all

$form ="<div id=\"reg\"><form name=\"form1\" method=\"post\" action=\"$PHP_SELF\">";

When the file is opened in a browser, it shows

Code: Select all

<form name="form1" method="post" action="">

[benbacardi]

try using $_SERVER['PHP_SELF'] instead of just $PHP_SELF

[Webforumz Staff]

This is to do with the 'register globals' setting which can be found in your php.ini file. When you want to use a GET, POST or SERVER variable in your PHP page you should really refer to it using it's full name.
Eg: $_SERVER['PHP_SELF']
$_POST['name']

On most servers register_globals this should really be turned off, otherwise someone can send a get variable to your script and, if you haven't declared variables before you use them, override certain sections of your code...

[jamina1]

I tried using the $_server['php_self'] but it gave me a weird parse error.

I made a test page consisting of this:

Code: Select all

<?php

echo($PHP_SELF);
echo($_SERVER['PHP_SELF']);

?>

And it gave me /testing/test.php which is the document and its root. The plain PHP self command still evaluated blank. BUT - seeing that this worked, I put the server php command into my feedback page and got this error: parse error, expecting `T_STRING' or `T_VARIABLE' or `T_NUM_STRING'

Still, shouldn't it work if I explicitly set the file using the FULL http address? Shouldn't that work? It doesnt..

[jamina1]

Originally Posted by Sirkent

This is to do with the 'register globals' setting which can be found in your php.ini file. When you want to use a GET, POST or SERVER variable in your PHP page you should really refer to it using it's full name.
Eg: $_SERVER['PHP_SELF']
$_POST['name']

On most servers register_globals this should really be turned off, otherwise someone can send a get variable to your script and, if you haven't declared variables before you use them, override certain sections of your code...

Do you mean that Action should be action="$_Post['name']?? What is name supposed to be?

[benbacardi]

use this code instead of the first line of code you posted in the first post:

Code: Select all

$form ="<div id=\"reg\"><form name=\"form1\" method=\"post\" action=\"".$_SERVER['PHP_SELF']."\">";

and no, you don't use $_POST['name'] in the action attribute of the form tag. $_POST['name'] is used on the page recieving the form data to grab the data from the form. For example, if you have a field called "textfield1", when the data gets sent to the recieving page, you could just reference it with $textfield1, but that is not the correct way to do it, and wont always work - you refer to the variable using $_POST['textfield1'] instead.

[jamina1]

Tried the most recent suggestion - same problem:

Parse error: parse error, expecting `T_STRING' or `T_VARIABLE' or `T_NUM_STRING'

[benbacardi]

are you sure that error is the same line of code? because i get no error with the code i gave you...

[jamina1]

Its gotta be the server I'm working with. All the code WORKS on my own domain - a server that i didn't set up though, so I don't know how they have their PHP ini file configured.

The annoying part is that it SHOULD work. But its not.

[Tim356]

What line number is the error reporting? Can you post that line of code for us?

[jamina1]

Here's the page in its entirety on MY webserver, on which it works properly. I know it isn't my code because it works properly on this testing server.

http://www.primitivemelody.us/test/contact.php

On our company's webserver, the file fails to work properly. Here is the EXACT same file on our server, and it won't work.

http://www.gemandjewelry.tv/testing/contact.php

The line of code in question is line 42:

Code: Select all

$form ="<div id=\"reg\"><form name=\"form1\" method=\"post\" action=\"$PHP_SELF\">";

Since it is working on one server and not the other, it has to be an issue with our server. I've tried comparing the PHPInfo readouts, but can't really figure out what differences would cause such an issue! Any ideas?

Thanks so much for all the help so far, btw.

[benbacardi]

you still need to change that line to

Code: Select all

$form ="<div id=\"reg\"><form name=\"form1\" method=\"post\" action=\"".$_SERVER['PHP_SELF']."\">";

it may be that the two different servers are running two different versions of PHP, and it's likely that the php.ini files are configured differently.

[jamina1]

Originally Posted by benbacardi

it may be that the two different servers are running two different versions of PHP, and it's likely that the php.ini files are configured differently.

Well I initially installed the same version of PHP on our server that is on mine, but upgraded hoping it might solve the issue. Is there any way to see how their PHP ini file is configured and match it to ours??

The only other thing I can think of is that possibly the mail() command settings in the PHP.ini file aren't right (I have them set to send mail through our gmail account), but that wouldn't make something like that not work properly, would it?

[Webforumz Staff]

Have a look at a PHPInfo screen:

Code: Select all

<?
phpinfo();
?>

It'll give you useful information that may help you track this down.

[Tim356]

I think he's tried that one, but yeah - comparing the .ini files would be the same as comparing the phpinfo pages.

[jamina1]

Y'all are going to hate me.

Now, using the concactenated version of $_Server['php_self'] and turning on error readouts, it at least gets through the action part of the form and that evaluates correctly.

Now its giving me UNDEFINDED VARIABLE errors for every variable in the code.

WHY?!! This code works on my other server, why isn't it working here!?

[Tim356]

What is your register_globals setting set to? Check your phpinfo page for this info. I'm guessing it's off, try turning it on and see what happens (although it's recommended to leave it off, so you may need to build a work around if this is the case).

Although $_Server['php_self'] should work regardless of the register_globals setting...

[benbacardi]

are you using $_POST['variablename'] for the variables sent by the form? if not, you really ought to be