public static function checkErrorCode($pValue)
    {
        $pValue = (string) $pValue;

        if (!isset(self::$errorCodes[$pValue])) {
            $pValue = '#NULL!';
        }

        return $pValue;
    }
public static function checkErrorCode($pValue)
    {
        $pValue = (string) $pValue;

        if (!isset(self::$errorCodes[$pValue])) {
            $pValue = '#NULL!';
        }

        return $pValue;
    }
public static function checkErrorCode ( $ pValue ) { $ pValue = ( string ) $ pValue ; if ( ! isset ( self :: $ errorCodes [ $ pValue ] ) ) { $ pValue = '#NULL!' ; } return $ pValue ; }
Check a value that it is a valid error code.

@param mixed $pValue Value to sanitize to an Excel error code

@return string Sanitized value
Check a value that it is a valid error code .