Cannot Redclare Function - (*_once not helping)

[spaly]

Hi all,
I'm getting the following error:
Fatal error: Cannot redeclare allow_view() (previously declared in C:\Inetpub\wwwroot\rooms\includes\cms_functions.php:3) in C:\Inetpub\wwwroot\rooms\includes\cms_functions.php on line 23

Here is my code:

<?php
	$this_page = 'rooms';
	session_start();
	header("Cache-control: private"); //IE6 Fix

include_once("includes/dbConnect.php");
include_once("includes/cms_functions.php");

The error only comes up after the page is reloaded a couple times. It seems that the server is caching the include(?) Using include_once/require_once do not help.

I am porting an entire application that has worked fine on other platforms and this is the first time I'm finding the problem.

There were no errors in:
local platform: xampp PHP 5.2.3
other apache systems - PHP 4.x & 5.x

Now I am trying to run PHP 5.2.6 on a IIS server.

Has anyone experienced this issue and found a resolution?

[bradmasterx]

cms_functions.php has a function called allow_view(); has been used twice.

[spaly]

That is not the problem.

cms_functions.php does declare the function allow_view(){}
However, it is only declared once - via this include - that is called ONCE in the script.

It works the first time the page is loaded (or sometimes the first few times) before throwing the error.

On all other systems I've successfully used include (in fact, this exact same code without the _once) because it is compliant.

[NogDog]

Well, the error message is indicating that the function is declared in two places (line 3 and line 23) in the same file (cms_functions.php). It might therefore be useful to post, say, lines 1 through 30 of that file so we can see if, in fact, there is something going on in the script that is causing that (perhaps a function definition within a conditional block or a loop, or a recursive include?).

[spaly]

Trust me, it is not being declared twice. As previously mentioned, this same code works on other systems.

Line 3 - function declaration
Line 23 - end of function declaration

<?php
//CHECK THE LIST OF SPECIFIED USERS TO MAKE SURE THEY'RE ALLOWED TO VIEW
function allow_view($user_types,$session_vars){
	$header_info = "Location: http://".$_SERVER['HTTP_HOST'].dirname($_SERVER['PHP_SELF'])."/index.php";
	//SEND AWAY NON-LOGGED IN USERS
	if(empty($session_vars['userID'])){
		header($header_info);
		exit();
	}
	//CHECK IF USER MATCHES ANY OF THE USER TYPES
	$types_ar = explode(",",$user_types);
	$allowed = false;
	foreach($types_ar as $user_type){
		$query = "SELECT * FROM user WHERE ID = '".$session_vars['userID']."' AND type = '$user_type'";
		$result = mysql_query($query) or die(mysql_error().$query); 
		if(mysql_num_rows($result) > 0)
			$allowed = true;
	}
	if(!$allowed){
		header($header_info);
		exit();
	}
}//allow_view

[Kudose]

A hack would be to wrap the function declaration inside an if(!function_exists('allow_view'))

[NogDog]

What version of PHP are you using? Are you using any optimizers or caching tools (e.g.: Zend Optimizer)?

You might want to take a look at http://bugs.php.net/bug.php?id=41677 (it doesn't really suggest a fix, but might be interesting if you also had a memory exceeded error at some point).

[spaly]

Well, no resolution here. We never did look into the optimizers or caching tools suggestion - though that seems to be the best next step suggested.

Instead we're going to switch back to a trusty linux install...

[Kudose]

spaly wrote:

on a IIS server

In a Mythbusters voice

Well there's your problem!

😉

Good luck with the linux box.