problem with include file for function

[ltbaggz]

I am trying to include a file that just defines some parameters for database access.  my setup is as follows
[code]
<?php
include_once("include/mysql_class.php");
include_once("include/db_info.php");

function go($year, $month)
{

$my_db = new mysql($db, $db_host, $db_pass, $db_user);
$name = $my_db->get_name();
echo $name;
$my_db->connect();
//there is more to the function but this is where the problem is

}
?>

[/code]
the variables, $db, $db_host, $db_pass, $db_user are defined in this file but it will not recognize them and prints nothing for $name, i use this same file in another places and the variables are accessed fine. the only difference is that this is a function but i cant see why that would matter.  any ideas?

Drew

[trq]

You would need to pass these variables into the function. eg;

[code=php:0]
function go($year, $month, $db, $db_host, $db_pass, $db_user)
[/code]

[drifter]

that is because it is in a function - this is scope
try as your first line of your function

global $name;

That will fix it - or you can pass $name into the function when you call it.

[kenrbnsn]

It's a scope problem.

Variables defined outside of a function are not visible inside of the function unless they are either declared as globals inside the function or are passed as parameters.

To set them as globals, do something like:
[code]<?php
function go($year, $month)
{
        global $dbm $db_host, $db_pass, $db_user;
$my_db = new mysql($db, $db_host, $db_pass, $db_user);
$name = $my_db->get_name();
echo $name;
$my_db->connect();
//there is more to the function but this is where the problem is

}
?>[/code]

To pass them as parameters:
[code]<?php
function go($year, $month, $db, $db_host, $db_pass, $db_user)
{

$my_db = new mysql($db, $db_host, $db_pass, $db_user);
$name = $my_db->get_name();
echo $name;
$my_db->connect();
//there is more to the function but this is where the problem is

}
?>[/code]

If you pass them by parameters, you will have to change any lines that call the function.

Ken

[ltbaggz]

alrighty sounds good, just decided to pass them in the function but i wanted to make sure i understood why. 

Drew