public function _toFile($file = null) {
    $file = $file ?: sys_get_temp_dir() . '/belt_trace.log';
    $this->options['printer'] = 'file://'.$file;
    return $this;
  }
public function _toFile($file = null) {
    $file = $file ?: sys_get_temp_dir() . '/belt_trace.log';
    $this->options['printer'] = 'file://'.$file;
    return $this;
  }
public function _toFile ( $ file = null ) { $ file = $ file ? : sys_get_temp_dir ( ) . '/belt_trace.log' ; $ this -> options [ 'printer' ] = 'file://' . $ file ; return $ this ; }
Use file based output. Useful to work around nginx's log swallowing
annoyingness.

@fluent
Use file based output . Useful to work around nginx s log swallowing annoyingness .