PHP variables

nniehoff · #1 04-Jan-2002, 20:47

Lets say you have "something.php?mode=newhatever&blah=545"

How do you get the mode and blah variables out, is it easy? I know that using javascript you have to use a split method and a bunch of arrays, is it similar, or simpler?
Nick

Garth Farley · #2 10-May-2002, 06:28

I know this has been here for ages, and I only joiined yesterday, but I'll reply anyway. Just in case someone else has this problem.

The biggest advantage of PHP is the way that it handles variables, passed from one page to another. Put simply, your query string

"something.php?mode=newhatever&blah=545"

will create new variables in something.php called

$mode - which contains "newhatever"
$blah - contains "545"

It's that easy. Then you can do what you want to these variables from the start of something.php. Don't you just love Open Source!

Garth Farley

Andrew · #3 10-May-2002, 10:55

so you can then do something like:

echo"$mode";

and it will display:

newwhatever

Garth Farley · #4 11-May-2002, 10:19

Yup. Have a space between echo and the quote.

This should work too:

echo $mode;

Garth Farley

JdS · #5 05-Jun-2002, 03:24

With php 4.2.1 it's now

PHP Code:


<?php
  echo $_POST['mode'];  // when the POST method (a form) is used
  echo $_REQUEST['blah'];  // if you're not certain
  echo $_GET['mode']; // when the GET method (query string) is used
?>

and they're superglobals, so they exist even in functions and classes!

Garth Farley · #6 08-Jun-2002, 07:26

Yeah, that's been done for security reasons. There is a setting in PHP.ini that allows you to use the easier (if not a little more dangerous) variables. I think it's register_globals.

Garth Farley

nickbeee · #7 24-Jul-2002, 06:46

Quote:

Yeah, that's been done for security reasons. There is a setting in PHP.ini that allows you to use the easier (if not a little more dangerous) variables. I think it's register_globals.

I just discovered that recently, couldn't figure out why PostNuke would not get past the first page of the installer on php 4.2.1 when it was perfect on 4.0.6 No choice but to use the register_globals workaround :-?

So much for upgrades

NickBeee

nickbeee · #8 26-Jul-2002, 06:25

php 4.2.2 has been released as a security update.
http://www.php.net

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