保存复选框如果已保存则取消选中

Question

我有以下我目前默认选中的复选框

<tr>
    <td>&nbsp;</td>
    <td>&nbsp;</td>
    <td align="right">Include In Top Sellers?</td>
    <td>
        <input type="hidden" name="include_top" value="0">
        <input type="checkbox" name="include_top" id="include_top" value="1" 
                          <?php echo (($_POST["include_top"] == "1") or ($res["include_top"] == "1")) ? "checked='checked'" : ""; ?>
                            autocomplete="off" checked/>
    </td>
</tr>

它在PHP文件中运行。问题是，如果我取消选中并保存它，我需要它保持不受控制。我仍然希望检查默认值。 php文件是Magento中新产品设置的模板。不确定会话或cookie是否会对此有所帮助。

Answer 1

试试这个：

<tr>
                          <td>&nbsp;</td>
                          <td>&nbsp;</td>
                          <td align="right">Include In Top Sellers?</td>
                          <td>
                            <input type="hidden" name="include_top"
                            value="0"><input type="checkbox"
                            name="include_top"
                            id="include_top"
                            value="1" <?php echo (($_POST["include_top"] == "1") or ($res["include_top"] == "1") or (!array_key_exist('include_top', $_POST))) ? "checked='checked'" : ""; ?>
                            autocomplete="off"/>
                          </td>
                        </tr>