$file = $backtrace[$backtrace_level]['file'];
$line = $backtrace[$backtrace_level]['line'];
- $this->errors[] = 'PLCAPI error: ' . $error_msg . ' in ' . $file . ' on line ' . $line;
- error_log(end($this->errors));
+ $error_line='PLCAPI error: ' . $error_msg ;
+ if ($file) $error_line .= ' in file ' . $file;
+ if ($line) $error_line .= ' on line ' . $line;
+ $this->errors[] = $error_line;
+ error_log($error_line);
}
function error()