global function ????

mitchell_1078

Hi ..

In my first.php, there is a function. I would like to call this function from second.php. Is there any global scope for functions like global variables ?? Thanks in advance.

regards,
Mitchell

drew010

if you put

include("first.php");

somewhere in second.php you are able to use the functions in it.

mitchell_1078

In second.php,

include('first.php');
sum(1+2);

........
.......

When I use 'include' like this, it goes to first.php page instead of calling desired function. How can I fix it ??

drew010

well include brings the contens of the file into the calling script, so if you output things they will show up. you should just make a file global.functions.php and put only functions in it, then you can include that file and call any functions it contains.

mitchell_1078

Thank so much for your help. I got it.. 🙂..

regards,
Mitchell

mitchell_1078

I am sorry. I got fatal error again.

first.php,second.php .. etc.php use same function in global_fun.php.

When first.php calls a function, it is ok but calling from other php page makes fatal error.
Fatal error: Cannot redeclare read_config() (previously declared in global_function.php:3) in global_function.php on line 16 ..

Could you please help me again ???

thorpe

you can only have one copy of said function.

so, if you have a function called read_config() in your globals.php and you include globals.php in your first.php page you cannot have another copy of it in your first.php page.

does that make sense?

drew010

you are only allowed to declare a function once, so i am guessing what is happening you have the same function in first.php and some other script.
either a page was included twice by accident or you have first.php with a function read_config() and also a global script with read_config().

mitchell_1078

In welcome.php, I use include("login.php") twice for following reasong.

if (username and pwd are null)
{
include("login.php"); // to complete form
}

.....
.....
$bind = @ldap_bind($connect, $dn, $pwd);
if(!$bind)
{
include("login.php"); // to try again
}

drew010

that might be it but its hard to tell from that. is read_config() declared in two files or only one?

mitchell_1078

read_config() is defined in global_fun.php once.

I called this fun from both login.php and welcome.php. It is fine.
But in welcome.php, I need to redirect to login.php for null value in user and pwd fields and for wrong pwd. So I used include(login.php) twice. When I commented out one, it works. But I need to do twice. How can I ??

drew010

maybe in that context instead of using include "login" twice, use header("Location: login.php");
that way they will be redirected back to login, but this will only work if nothing has been output to the browser at either of those two points.

mitchell_1078

is there any way to carry $message along with it in redirecting from welcome.php to login.php ?? For first case, $message="please enter all info".. for second case, $message="invalid user.. try again..".

drew010

you could do header("Location: login.php?message=1");

and in login.php

if (isset($_GET['message'])) {
  switch($_GET['message']) {
    case 1: $error = "you didnt do this"; break;
    case 2: $error = "you didnt do that"; break;
    default: $error = "invalid error message"; break;
  }

  echo $error;
}

mitchell_1078

Hi.. Thank you so much for your information. Now it works. But this header() conflicts with $_SERVER['...']. I am trying to fix it. Thank you so much for your patience.

regards,
Mitchell

Weedpacket

On an FYI note; all functions are global in scope (I'm not talking about object methods, only functions), even if they're declared inside other functions. Also, include_once() can be used to prevent including files that have already been included.