function + $userdata is failing: PHPFusion 8 Support

Home
Search

Oh no! Where's the JavaScript?
Your Web browser does not have JavaScript enabled or does not support JavaScript. Please enable JavaScript on your Web browser to properly view this Web site, or upgrade to a Web browser that does support JavaScript.

I don't know if this is a bug or not. Although what I'm trying to do makes perfect sense, so I don't understand why it isn't working, hence I'm posting here.

I am writing my own functions now. And it has been going great until I tried to put an SQL command in a function, that has a conditional (WHERE user_id = ".$userdata['user_id']."

And I was experimenting after getting nothing for the user_id. I tried just echoing the user_id with

echo $userdata['user_id'];

and it didn't work. It didn't display anything, not even a zero.

And then I tried echoing with that same exact command, on the line before the function started, so that it wasn't a part of the function. And it worked! And now I'm really, really confused.. Can you simply not use the $userdata variable in functions, or any db queries in functions? And if you can't, how might I get around this issue?

Thanks!
googlebot

Edit reason: disable smileys.

Edited by googlebot on 03-01-2010 04:11, 15 y

0 replies

global $userdata;

-- insert in [header of] your function.

0 replies

here an example:

Code Download source

$var1 = "as";
$var2 = "as";
$var3 = "as";

testme($var3);

function testme($var4){
global $var1;

echo $var1; // works
echo $var2; // works not
echo $var3; // works not
echo $var4; // works
}

Edited by Basti on 03-01-2010 14:48, 15 y

0 replies

I sayed global ...

0 replies

Thanks so much guys!

Thanks PolarFox for the solution, and thanks slaughter for the example; now I understand functions more. :) I just started writing custom functions yesterday, so it didn't make sense to me. But now it does. :)

0 replies

what does global really do?

0 replies

Quote

afif wrote:
what does global really do?

http://php.net/manual/en/language.var....scope.php

0 replies

Thanks for the help guys, but I've run into...sort of the reverse of this problem now:

In short I have these functions:

Code Download source



function test($var) {
echo $var;
}

function testing() {
$var2 = $var+1;
echo $var2;
}

And I want to make the $var variable a global, so that other functions can use it even though it is only declared in the test function. I have a similar layout to this with a couple of functions on about 30 pages, so I am looking for a simple way to edit the two functions to accomplish this, without having to edit every single file.

Is this possible? Thanks!

Edited by googlebot on 18-01-2010 19:49, 15 y

0 replies

Use constants?

0 replies

Quote

PolarFox wrote:
Use constants?

I've been reading up on the subject, but I'm still a little confused.

The example on the PHP.net site is:

Code Download source

define("FOO",     "something");

But how would I define $var as a constant? Like this?

Code Download source

define($var,     "something");

But the value changes, so would I have to define something new, with the value of var, like this?

Code Download source

define($new,     $var);

I'm new to the whole functions scene... Sorry about my ignorance.

0 replies

The constants always defined constantly - eg once.
So, if you need change your VARs in future - you should use globals.

Quote

global $var1, var2;
$var1 = 5;
func(){
global $var1;
$newvar = $var1;
echo $newvar;
}

Something liek this...

0 replies

Thanks, was curious about this too:)

0 replies

Category Forum

Suspected Bugs and Errors - 8

Labels

None yet

Statistics

Views 0 views
Posts 11 posts
Votes 0 votes
Topic users 5 members

5 participants

Notifications

Track thread

You are not receiving notifications from this thread.

function + $userdata is failing

11 posts

PHPFusion

Resources

Community

Development