<form method ="post">

<input type="text" name="price" value="">
<input type="submit" name="change" value="変更">
<input type="hidden" name="id" value="<?php $value['id'];">

        <select name="open_status">
            <option value= "0">非公開</option>
            <option value="1">公開</option>
        </select>
 <form method="post">        
　　　　　<td><?php print htmlspecialchars($value['open_status'],ENT_QUOTES,
            'UTF-8'); ?>
        <input type="hidden" name="open_status" value="<?php echo 
        $value['open_status']; ?>">
        <input type="hidden" name="drink_id" value="<?php echo $value['id']; ?>">
        <input type="submit" name="status_chg" value="
        <?php if((int)$value['open_status'] === 0) { ?>
            <?php echo "非公開→公開"; ?>
        <?php } else if ((int)$value['open_status'] === 1) {  ?>
            <?php echo "公開→非公開"; ?>
        <?php } ?>">

        </td>
  </form>