Call to a member function add() on a non-object

**ReX357** · May 18, 2009 11:22

Hi, I am trying to modify this message board system called FOG, it's a Smarty template based forum.

I getting the error "Call to a member function add() on a non-object " at the bold line:

Code:

function FOGErrorHandler($n,$str,$file,$line,$context){
	global $fog_log;
	static $array = array(
			      E_NOTICE => 'Notice',
			      E_WARNING => 'Warning',
			      E_USER_NOTICE => 'User Notice',
			      E_USER_WARNING => 'User Warning',
			      E_USER_ERROR => 'User Error'
	);
	$ns = isset($array[$n])?$array[$n]:(' Error #'.$n);
	if((FOG_OPTION_DISPLAY_ERRORS || $n === E_USER_ERROR) && ($n != E_NOTICE || $fog_log->level > $fog_log->levels['ERROR']))
		echo '<pre>PHP : <strong>',$ns,'</strong> : ',$str,'<br /><em> in file <strong>',$file,'</strong> at line <strong>',$line,'</strong></em></pre>';
	if($n !== E_NOTICE){
		$s = $str.' <strong>'.$file.'#'.$line.'</strong>';
		if($fog_log->level > $fog_log->levels['NOTICE']){			
			$tmp = debug_backtrace();
			if(isset($tmp[0]['args'][4])) //Virer l'argument $context, qui prens trop de place dans le log 
				unset($tmp[0]['args'][4]);
			$s.= '<br />BackTrace : <br /> '.highlight_string("<?php\n".var_export($tmp,TRUE)."\n?>",TRUE);
			unset($tmp);
		}
		$fog_log->add('ERROR','PHP '.$ns,$s);
		if($n === E_USER_ERROR)
			exit('<br /><br />Fatal Error, Aborting...');
	}
}

What's wrong? $fog_log is defined, I don't understand why it's throwing that error.