I have used the following code to get the document root.
$path = get_file_dir();
function get_file_dir() {
global $argv;
return realpath($argv[0]);
}
Below code includes config.php and config.php has the $setuprun variable with a value.
if((file_exists("$path/admin/config.php"))) {
include_once "$path/admin/config.php";
}
if($setuprun=="true") {
//do some code
}
In my system, it takes the document root like /home/myname/myfolder and the variable $setuprun has the value and the code works perfectly.
But in another user's system, it shows the following error.
Notice: Undefined variable: setuprun in /usr/local/www/chat/setup.php on line 22.
He is using FreeBSD 8.2 Stable with MySQL 5, PHP5 and Apache 2.2.
Can anyone please help me to solve this error?
Try this..
define('setuprun', true); //to clear the error
AND this instead setuprun == true..
if(defined('setuprun'))
Undefined variable means that you didn't define your setuprun ... If you define this variable in another document you must check is it included or not before use variables that defined in it.
and try use dirname(__FILE__) rather than $argv[0]
Related
I've read up on this problem a little, mainly from articles on here. It appears that it is typically generated by someone trying to do $foo[bar] instead of $foo['bar'], but I have checked several times around where the error is occuring in my script and this is not the case.
I have a php file, which contains the following script:
define("APP_PATH", "http://localhost/foobar");
require_once APP_PATH . "/classes/controller.php";
This appears to be executing fine. Inside controller.php I have this code:
require_once APP_PATH . "/classes/factory.class.php";
$factory = new factory;
This, to my knowledge, should execute perfectly fine. However, I am getting the following error: Notice: Use of undefined constant APP_PATH - assumed 'APP_PATH' in C:\wamp\www\foobar\classes\controller.php on line 3. Line 3 is the call to require_once.
I have checked, I am fairly sure that this should not be causing an error. I've also checked my spelling. The same line also triggers a warning and a fatal error about failing to open the stream, it is returning APP_PATH/classes/factory.class.php as the path.
Any help would be much appreciated.
The problem is that you are including from a remote place.
Let's say that APP_PATH.'/classes/controller.php' is as follows:
<?php
class Some_Controller extends Controller {
// ...
}
echo 'TEST!';
When you include it through HTTP the PHP interpreter will parse the file before sending it back to be included:
<?php
include APP_PATH.'/classes/controller.php';
// This will print "TEST!" to the page because PHP has
// parsed the code and the only thing in the output
// buffer is "TEST!" (from the "echo 'TEST!';")
In order to fix this you need to include from the local environment. In Linux it would be some like
/path/to/web/classes/controller.php
In Windows it would be something like:
C:\path\to\web\classes\controller.php
Looking through the server PHP error log has revealed that a certain type of PHP Notices comes up as the most frequent, and it has to do with Smarty. I've found a question which seems to describe the same error, but there is actually no answer.
The notice is the following (there are different variables stated as undefined):
PHP Notice: Undefined variable: is_admin in /usr/share/php/Smarty/sysplugins/smarty_internal_data.php on line 291
I wonder how I can possibly debug this one since no data (like template name) is provided.
Below I'm gonna give you some idea of the code (which you can read in full detail here since it's all open-source).
So there is one global smarty object which is created in a file called header.php, and further in the same file some global smarty variables are set, including the one from the notice above:
//init Smarty
require_once('Smarty.class.php');
$smarty = new Smarty();
...
$smarty->assign('is_admin', is_admin() ? 1 : 0);
This header.php is then included in every file that needs to show some HTML by calling $smarty->display(...). So I presume that in any file where the $smarty object is present this object has a variable called is_admin. However, it doesn't seem to be the case.
Additionally, "normal" Smarty warnings about unset variables look differently:
PHP Notice: Undefined index: sent_id in /var/www/smarty_dir/templates_c/a5aab2c66c44442365a39981ba9be18e0a1f11ad.file.history.tpl.cache.php on line 123
Any ideas?
Upd.
I've read some logs and I see that such warnings seemingly arise when a user enters a page and gets 302 HTTP status. This may be due to the following code (which is placed after smarty constructor call but before the variables are assigned:
//cookie check
if (!is_logged() && isset($_COOKIE['auth'])) {
if ($user_id = check_auth_cookie()) {
if (user_login('', '', $user_id, $_COOKIE['auth'])) {
header("Location:".$_SERVER['REQUEST_URI']);
return;
}
}
}
So I guess I should move $smarty initialisation after this block and it is likely to help. Still I'm curious about how it relates to the issue.
I think I got it. The issue is really in the piece of code including
header("Location:".$_SERVER['REQUEST_URI']);
return;
My error is that return does not act like exit in this case, because when you call return from a file which is required or incuded into another one, you just return the control to that another file. I wasn't aware of this feature.
'is_admin', is_admin() you are trying to assign the function is_admin() as a variable {$is_admin} to the Smarty template, which according to me, is impossible.
Assign the return result to a variable i.e.:
$var = is_admin();
$smarty->assign('is_admin', $var);
I am trying to call a function from another function. I get an error:
Fatal error: Call to undefined function getInitialInformation()
in controller.php on line 24
controller.php file:
require_once("model/model.php");
function intake() {
$info = getInitialInformation($id); //line 24
}
model/model.php
function getInitialInformation($id) {
return $GLOBALS['em']->find('InitialInformation', $id);
}
Things already tried:
Verified that the require_once works, and the file exists in the specified location.
Verified that the function exists in the file.
I am not able to figure this out. Am I missing something here?
How to reproduce the error, and how to fix it:
Put this code in a file called p.php:
<?php
class yoyo{
function salt(){
}
function pepper(){
salt();
}
}
$y = new yoyo();
$y->pepper();
?>
Run it like this:
php p.php
We get error:
PHP Fatal error: Call to undefined function salt() in
/home/el/foo/p.php on line 6
Solution: use $this->salt(); instead of salt();
So do it like this instead:
<?php
class yoyo{
function salt(){
}
function pepper(){
$this->salt();
}
}
$y = new yoyo();
$y->pepper();
?>
If someone could post a link to why $this has to be used before PHP functions within classes, yeah, that would be great.
This was a developer mistake - a misplaced ending brace, which made the above function a nested function.
I see a lot of questions related to the undefined function error in SO. Let me note down this as an answer, in case someone else have the same issue with function scope.
Things I tried to troubleshoot first:
Searched for the php file with the function definition in it. Verified that the file exists.
Verified that the require (or include) statement for the above file exists in the page. Also, verified the absolute path in the require/include is correct.
Verified that the filename is spelled correctly in the require statement.
Echoed a word in the included file, to see if it has been properly included.
Defined a separate function at the end of file, and called it. It worked too.
It was difficult to trace the braces, since the functions were very long - problem with legacy systems. Further steps to troubleshoot were this:
I already defined a simple print function at the end of included file. I moved it to just above the "undefined function". That made it undefined too.
Identified this as some scope issue.
Used the Netbeans collapse (code fold) feature to check the function just above this one. So, the 1000 lines function above just collapsed along with this one, making this a nested function.
Once the problem identified, cut-pasted the function to the end of file, which solved the issue.
Many times the problem comes because php does not support short open tags in php.ini file, i.e:
<?
phpinfo();
?>
You must use:
<?php
phpinfo();
?>
Your function is probably in a different namespace than the one you're calling it from.
http://php.net/manual/en/language.namespaces.basics.php
I happened that problem on a virtual server, when everything worked correctly on other hosting.
After several modifications I realized that I include or require_one works on all calls except in a file.
The problem of this file was the code < ?php ? > At the beginning and end of the text.
It was a script that was only < ?, and in that version of apache that was running did not work
This is obviously not the case in this Q,
but since I got here following the same error message I though I would add what was wrong with my code and maybe it will help some one else:
I was porting code from JS to PHP and ended up having a class with some public method.
The code that was calling the class (being code that originated from JS) looked something like:
$myObject.method(...)
this is wrong because in PHP it should look like this:
$myObject->method(...)
and it also resulted with "PHP Call to undefined function".
change to use -> and the problem was solved.
Presently I am working on web services where my function is defined and it was throwing an error undefined function.I just added this in autoload.php in codeigniter
$autoload['helper'] = array('common','security','url');
common is the name of my controller.
Please check that you have <?PHP at the top of your code. If you forget it, this error will appear.
Alright this is what my code looks like
index.php
require_once($WebsiteRoot . "/include/testfile.php");
TestFunction();
/include/testfile.php
function TestFunction()
{
echo "It Works";
}
And it gives me the error:
Fatal error:
Call to undefined function TestFunction() in /path/index.php on line 49
Any idea what i'm doing wrong?
Thanks
You haven't included a <?php tag in the included file, so it's just interpreted as plaintext input.
Remember... there's no such thing as a PHP script. There's only files which contain PHP code blocks. Without at least one <?php opening tag, the PHP interpreter will never be invoked and the file's contents will simply be treated as output.
try calling another function from testfile.php, if this is'nt working, its something with the include. Add the code:
error_reporting(E_ALL | E_WARNING | E_NOTICE);
ini_set('display_errors', TRUE);
to the top of index.php and refresh the browser to see your errors, try debugging from there.
The problem that i can forsee is that you are using a URL instead of a path, your $websiteRoot variable should contain a path like:
$websiteRoot = "/var/www/html/websiteName";
OR
$websiteRoot = "C://xampp/htdocs/websiteName";
instead of a URL like:
$websiteRoot = "http://www.somesite.com";
I had a similar issue. I dug into the PHP in the included file and found an invalid PHP tag. I had <? instead of <?php. PHP 7.2 and earlier forgave that, but PHP 7.3 was throwing that same error you faced.
Make sure you're including the file you think you are. If your index.php page looks exactly like you've stated, then it won't return anything.
If you want to link to the same location from anywhere on the site without worrying about relative locations, then at the beginning of the file, put:
$WebsiteRoot=$_SERVER['DOCUMENT_ROOT'];
And it should work fine, provided your file would be located at http://mywebsite.com/include/testfile.php
Try renaming the included file.
I had an included file with the name "system.php". It looked as if the include command was just skipped. Even with the most strict error reporting there was no message and even an echo command in the main body of the included file did not produce output. It had worked ok under PHP 5 but after the upgrade to a 7.2 environment these problems arose. After much effort - I forgot how - I managed to get an error message. It said there was a conflict with a PEAR class with the name "system". Yet my file didn't contain any class, just variables and functions. Anyway, giving the file another name than "system.php" worked for me.
I hope someone else can add a more technical comment on what was going wrong here.
I'm calling a file named ajax.php (from my browser for testing)
ajax.php require_once delete.php
delete.php require_once no_direct.php
delete.php starts like this:
$allowed = array('group'=>'admin');
require_once(ASSETS.'/no_direct.php'); //Yes, ASSETS is defined and no_direct is being included.
In no_direct.php I'm trying to:
var_dump($allowed)
and I just keep coming up NULL.
Does this happen because we are running inside ajax.php's require_once function and the scope of $allowed pushes back to the GLOBAL scope not allowing me to access it from no_delete.php?
I was looking here: PHP variable defined in 'parent' file not recognized in 'required' file , just to be diligent.
I'm sure I could solve this with the GLOBAL keyword, but I was hoping for a little clarification. The PHP scope doc didn't seem to answer the question for me.
It wasn't wrapped in another function as thought to be the case.
Is there any chance that you already have called require_once(ASSETS.'/no_direct.php'); before you assigned value to $allowed?
require_once(ASSETS.'/no_direct.php');
...
$allowed = array('group'=>'admin');
require_once(ASSETS.'/no_direct.php');
Script no_direct.php should not output $allowed in this case.
Output will be:
Notice: Undefined variable: allowed in D:\wampserver\www\gim\no_direct.php on line 2
NULL
p.s. there's my path on localhost in wamp for my test file
Does this happen because we are running inside ajax.php's require_once function and the scope of $allowed pushes back to the GLOBAL scope not allowing me to access it from no_delete.php?
Definitely not.
There are NO scope issues regarding includes.
The only scope-dependent issue is user-defined functions.
So, if there are no functions involved, the only cause can be some mistake/mistype - you're editing/including wrong file, or including HTML code it via http or something of the kind. Just double-check.
So my ajax.php file also require_once build.php and config.php
My build.php file require_once no_direct.php as well.
As the function suggests, it will only require no_direct.php ONCE!
So the NULL that I was seeing was coming from build.php's include and not the delete.php's include of no_delete.