I've switched my files over from a local environment to my vps and now my facebook notification isn't working even thought I'm pretty sure I've updated all the paths correctly. I've tried writing the require path numerous ways. I'm doing a "$.post" from jquery to a php page where the facebook notification is sent and am getting this error:
<b>Fatal error</b>: Class 'Facebook' not found in
<b>/home/zjkkvcxc/public_html/accepted.php</b> on line <b>9</b><br />
//THIS IS MY PHP REQUIRE PATH.
require_once('php-sdk/facebook.php') ;
//IN MY LOCAL ENVIRONMENT I WAS USING THIS PATH BECAUSE IT WAS THE ONLY ONE THAT WORKED. THIS DOESN'T WORK ON MY VPS THOUGH.
require_once(dirname(__FILE__).'/php-sdk/facebook.php') ;
include_once will throw a warning, but will not stop PHP from executing the rest of the script. require_once will throw an error and will stop PHP from executing the rest of the script.
The require_once keyword is used to embed PHP code from another file. If the file is not found, a fatal error is thrown and the program stops. If the file was already included previously, this statement will not include it again.
The require() function is used to include a PHP file into another irrespective of whether the file is included before or not. The require_once() will first check whether a file is already included or not and if it is already included then it will not include it again.
You use require_once and have error "Class 'Facebook' not found". If you tried require_once on a file that does not exist, it would cause other error: "Fatal error: require(): Failed opening required 'php-sdk/facebook.php'". So the path is probably OK. Check if you uploaded php-sdk properly. The facebook.php might be empty.
Your error is :
Fatal error</b>: Class 'Facebook' not found in
<b>/home/zjkkvcxc/public_html/accepted.php</b> on line <b>9
The valuable information here is :
Facebook
class is unknown which means that require_once
did not pop this errorNow you have to look why the class Facebook
is unknown on line 9.
facebook.php
before line 9 it is probably not containing the right class. (class names are case sensitive!)facebook.php
after line 9 you just have to call it earlier.PS: posting the first 10-15 lines of accepted.php
might give us enough information to pinpoint the exact problem here.
I have faced issues like this before, and the best way to handle this is to set your true filepath as a variable & prepend that to your includes/requires. Becuase the whole dirname(__FILE__)
setup can act oddly in different environments especially those that use symbolic links. Explicitly stating where files are to be set is the best solution.
So let’s assume this is your codebase path; as per your example:
/home/zjkkvcxc/public_html/
Set that as a variable that all of your pages load in some way like this:
$BASE_PATH = '/home/zjkkvcxc/public_html/';
And now when you make calls to the file system for your app, do this:
require_once($BASE_PATH . 'php-sdk/facebook.php');
What is nice about a setup like this is that you can make your app portable between environments by just changing $BASE_PATH
to match your local environment. Like this might be a path for a MAMP (Mac OS X LAMP) setup:
$BASE_PATH = '/Application/MAMP/htdocs/';
Regarding how odd __FILE__
can act in symlinked environments, read up here:
Since PHP 4.0.2, _ FILE _ always contains an absolute path with symlinks resolved whereas in older versions it contained relative path under some circumstances.
Class not found error not refers to problem loading file. You are using a require , if file not exists a require error will be raised and this is not the case.
Probably the class inside facebook.php is not called Facebook, probably is with another name or with other case like "facebook"
Fatal error</b>: Class 'Facebook' not found in
<b>/home/zjkkvcxc/public_html/accepted.php</b> on line <b>9
Is it possible that:
<?
instead of <?php
in your facebook.php fileFor some odd reason, i encounter circumstances where php doesn't find the file i need through conventional means. i found some code used for searching a directory and retrieving a list of files, which was advantageous in a url generation script i was writing. overtime, i have used this simple script for many tasks, such as finding files when normal require/include
fails. in a pinch, this hack works for me.
Just fill in the file name $somefile
and directory name $log_directory
if your directory is in the base path just type it with no slashes. if its below the base path type it like this /path/to/folder
hope this helps.
$somefile = '<!--Filename You need to find-->';
$log_directory = '<!--Directory you want to search-->';
$results_array = array();
if (is_dir($log_directory))
{
if ($handle = opendir($log_directory))
{
while(($file = readdir($handle)) !== FALSE)
{
$results_array[] = $file;
}
closedir($handle);
}
}
foreach($results_array as $value)
{
if ($value == $somefile) {
$url_include = $log_directory."/".$value;
}else{
die("error file not found.");
}
}
require_once("$url_include");
require_once JPATH_SITE.'/php-sdk/facebook.php';
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