回答編集履歴

  $dbh = accessSQL();

  $stmt = $dbh->query("SELECT id, code, prod_name, mount, category, end_date from hozon");

  echo "<form name='show' method='post' action='index.php'>";//formは外側に

  echo "<tbody>";//tbodyもforeachの外に出す

  foreach ($stmt as $value) {

  echo "<input type='hidden' name='token' value='<?=CsrfValidator::generate()?>\'>";

  echo "<tr>";

  }

  echo "</tbody>";//tbodyもforeachの外に出す

  echo "</form>";//formは外側に

 

  }

  ```