private function executeTableShowFooter(array $columns): void
  {
    $separator = '+';

    foreach ($columns as $column)
    {
      $separator .= str_repeat('-', $column['length'] + 2).'+';
    }
    echo $separator, "\n";
  }
private function executeTableShowFooter(array $columns): void
  {
    $separator = '+';

    foreach ($columns as $column)
    {
      $separator .= str_repeat('-', $column['length'] + 2).'+';
    }
    echo $separator, "\n";
  }
private function executeTableShowFooter ( array $ columns ) : void { $ separator = '+' ; foreach ( $ columns as $ column ) { $ separator .= str_repeat ( '-' , $ column [ 'length' ] + 2 ) . '+' ; } echo $ separator , "\n" ; }
Helper method for method executeTable. Shows table footer.

@param array $columns
Helper method for method executeTable . Shows table footer .