static public function e500_notfound($requestID, $user, $action, $ident, $extra, &$err, $xml, $errnum, $errmsg, $config)
	{
		//$requestID, $user, $action, $ident, $extra, $errerr, $xml, $errnum, $errmsg, $this->_callback_config
		// Not found, *still call the callback!*
		
		/*
		$extra['callbacks'], $method, $action, $ID, $err, $qbxml, $qbobject, $qbres
		*/
		
		// Get the driver instance
		$Driver = QuickBooks_Driver_Singleton::getInstance();
		
		if (!isset($extra['callbacks']))
		{
			$extra['callbacks'] = array();
		} 
		
		if (!is_array($extra['callbacks']))
		{
			$extra['callbacks'] = array( $extra['callbacks'] );
		}
		
		$method = null;
		if (isset($extra['method']))
		{
			$method = $extra['method'];
		}
		
		$err = '';
		
		$qbobject = new QuickBooks_Iterator(array());
		$qbres = null;
		
		foreach ($extra['callbacks'] as $func)
		{
			if (false !== strpos($func, '::') and 
				true) // method_exists()) 	// is this safe to do?
			{
				// Callback *static method*
				
				$tmp = explode('::', $func);
				
				$return = call_user_func(array( $tmp[0], $tmp[1] ), $method, $action, $ident, $err, $xml, $qbobject, $qbres);
			}
			else if (function_exists($func))
			{
				// Callback *function* 
				
				$return = call_user_func($func, $method, $action, $ident, $err, $xml, $qbobject, $qbres);
			}
			else
			{
				$err = 'Could not call function or method: ' . $func;
				$Driver->log('API: ' . $err, null, QUICKBOOKS_LOG_NORMAL);
				return false;
			}
			
			if (!$return)
			{
				break;
			}
		}
		
		if ($err)
		{
			return false;
		}
		
		return true;
	}
static public function e500_notfound($requestID, $user, $action, $ident, $extra, &$err, $xml, $errnum, $errmsg, $config)
	{
		//$requestID, $user, $action, $ident, $extra, $errerr, $xml, $errnum, $errmsg, $this->_callback_config
		// Not found, *still call the callback!*
		
		/*
		$extra['callbacks'], $method, $action, $ID, $err, $qbxml, $qbobject, $qbres
		*/
		
		// Get the driver instance
		$Driver = QuickBooks_Driver_Singleton::getInstance();
		
		if (!isset($extra['callbacks']))
		{
			$extra['callbacks'] = array();
		} 
		
		if (!is_array($extra['callbacks']))
		{
			$extra['callbacks'] = array( $extra['callbacks'] );
		}
		
		$method = null;
		if (isset($extra['method']))
		{
			$method = $extra['method'];
		}
		
		$err = '';
		
		$qbobject = new QuickBooks_Iterator(array());
		$qbres = null;
		
		foreach ($extra['callbacks'] as $func)
		{
			if (false !== strpos($func, '::') and 
				true) // method_exists()) 	// is this safe to do?
			{
				// Callback *static method*
				
				$tmp = explode('::', $func);
				
				$return = call_user_func(array( $tmp[0], $tmp[1] ), $method, $action, $ident, $err, $xml, $qbobject, $qbres);
			}
			else if (function_exists($func))
			{
				// Callback *function* 
				
				$return = call_user_func($func, $method, $action, $ident, $err, $xml, $qbobject, $qbres);
			}
			else
			{
				$err = 'Could not call function or method: ' . $func;
				$Driver->log('API: ' . $err, null, QUICKBOOKS_LOG_NORMAL);
				return false;
			}
			
			if (!$return)
			{
				break;
			}
		}
		
		if ($err)
		{
			return false;
		}
		
		return true;
	}
static public function e500_notfound ( $ requestID , $ user , $ action , $ ident , $ extra , & $ err , $ xml , $ errnum , $ errmsg , $ config ) { //$requestID, $user, $action, $ident, $extra, $errerr, $xml, $errnum, $errmsg, $this->_callback_config // Not found, *still call the callback!* /*
		$extra['callbacks'], $method, $action, $ID, $err, $qbxml, $qbobject, $qbres
		*/ // Get the driver instance $ Driver = QuickBooks_Driver_Singleton :: getInstance ( ) ; if ( ! isset ( $ extra [ 'callbacks' ] ) ) { $ extra [ 'callbacks' ] = array ( ) ; } if ( ! is_array ( $ extra [ 'callbacks' ] ) ) { $ extra [ 'callbacks' ] = array ( $ extra [ 'callbacks' ] ) ; } $ method = null ; if ( isset ( $ extra [ 'method' ] ) ) { $ method = $ extra [ 'method' ] ; } $ err = '' ; $ qbobject = new QuickBooks_Iterator ( array ( ) ) ; $ qbres = null ; foreach ( $ extra [ 'callbacks' ] as $ func ) { if ( false !== strpos ( $ func , '::' ) and true ) // method_exists()) 	// is this safe to do? { // Callback *static method* $ tmp = explode ( '::' , $ func ) ; $ return = call_user_func ( array ( $ tmp [ 0 ] , $ tmp [ 1 ] ) , $ method , $ action , $ ident , $ err , $ xml , $ qbobject , $ qbres ) ; } else if ( function_exists ( $ func ) ) { // Callback *function*  $ return = call_user_func ( $ func , $ method , $ action , $ ident , $ err , $ xml , $ qbobject , $ qbres ) ; } else { $ err = 'Could not call function or method: ' . $ func ; $ Driver -> log ( 'API: ' . $ err , null , QUICKBOOKS_LOG_NORMAL ) ; return false ; } if ( ! $ return ) { break ; } } if ( $ err ) { return false ; } return true ; }
Handle a QuickBooks error indicating that nothing matched a search

For whatever strange reason, instead of returning an empty result set
when you do a search that returns no results, QuickBooks instead returns
an error message. The error message code might be either 1 or 500
depending on what filters you use in your query.

@TODO This should use the QuickBooks_Callbacks class, and not it's own custom callback code

@param string $requestID
@param string $user
@param string $action
@param mixed $ident
@param mixed $extra
@param string $err
@param string $xml
@param integer $errnum
@param string $errmsg
@param array $config
@return boolean
Handle a QuickBooks error indicating that nothing matched a search