register_globals and $_SERVER['QUERY_STRING']

[deko]

I use http variables with php - not sure if I've got the nomenclature
correct, so here's an example of what I'm talking about:

A navbar sends "somepage.php?somevariable" when the link is clicked. The
link looks like this:
<a href='somepage.php?somevariable'>Some Page</a>

Then I do stuff with "somevariable" in PHP code.

I understand that I need "register_globals = on" in my php.ini - but is
there any other config, Apache or otherwise, that needs to be set up?

I am not getting any value in $_SERVER['QUERY_STRING'];

Why no value? Other troubleshooting ideas?

Here's my server config:

L = rh9 2.4.20-8
A = apache 2.0.40-21
M = mysql-3.23.54
P = php4.2.2

Thanks in advance.

[Michael Fesser]

.oO(deko)

A navbar sends "somepage.php?somevariable" when the link is clicked. The
link looks like this:
<a href='somepage.php?somevariable'>Some Page</a>

Then I do stuff with "somevariable" in PHP code.

I understand that I need "register_globals = on" in my php.ini
Why? It's off for good reasons. You may only need it for older or third-
party scripts, not for newly written ones.
- but is
there any other config, Apache or otherwise, that needs to be set up?

I am not getting any value in $_SERVER['QUERY_STRING'];

Why no value? Other troubleshooting ideas?

No idea at the moment, but if you need the posted variable - it's stored
in $_GET['somevariable'].

Micha

[deko]

> No idea at the moment, but if you need the posted variable - it's stored

in $_GET['somevariable'].

Well, I'm not sure I understand. I don't know the value of 'somevariable' -
how do I retreive it"

Are you saying there is another way to get the value of a variable?
Currently I am using:

$nav = trim(strip_tags($_SERVER['QUERY_STRING']));

to retreive the value of variables passed thusly:

<a href='services.php?services'>Professional Services</a>

in this case, $nav = services

If there is a better way to retreive the value of the variable, I would like
to know. As for your suggestion with $_GET - can you give me an example?

[Michael Fesser]

.oO(deko)

No idea at the moment, but if you need the posted variable - it's stored
in $_GET['somevariable'].
Well, I'm not sure I understand. I don't know the value of 'somevariable' -

Ah, OK.
Are you saying there is another way to get the value of a variable?
Currently I am using:

$nav = trim(strip_tags($_SERVER['QUERY_STRING']));

to retreive the value of variables passed thusly:

<a href='services.php?services'>Professional Services</a>

in this case, $nav = services
Is it possible to change the link to something like

<a href='services.php?name=value'>?

Would make it much easier if you would know the name of the passed
parameter.
If there is a better way to retreive the value of the variable, I would like
to know. As for your suggestion with $_GET - can you give me an example?

URL-parameters are stored in the array $_GET, in the example above the
array would contain an empty element named 'somevariable':

Array
(
[somevariable] =>
)

You can use the key() function to get its name (assuming that there's
only one parameter passed to the page):

$nav = trim(strip_tags(key($_GET)));

See <http://www.php.net/key>. But again: It would be easier with a name,
especially if you want to pass more than one parameter:

<a href='services.php?foo=this;bar=that'>

Then the $_GET array would be

Array
(
[foo] => this
[bar] => that
)

HTH
Micha

[deko]

> Is it possible to change the link to something like

<a href='services.php?name=value'>?

Yes. I tried it and it works fine. The only reason I was using
$_SERVER['QUERY_STRING']; was because of bad advice (that I paid $40/hour
for)... !

thanks for the help.