显示带有复选框和标签的列网格线，以便可以单击复选框并将其发送到PHP

<table id="grid">
  <thead>
    <tr>
      <th>复选框</th>
      <th>标签</th>
    </tr>
  </thead>
  <tbody>
    <tr>
      <td><input type="checkbox" name="checkbox1" value="value1"></td>
      <td>标签1</td>
    </tr>
    <tr>
      <td><input type="checkbox" name="checkbox2" value="value2"></td>
      <td>标签2</td>
    </tr>
    <tr>
      <td><input type="checkbox" name="checkbox3" value="value3"></td>
      <td>标签3</td>
    </tr>
  </tbody>
</table>
<button onclick="sendData()">发送到PHP</button>

function sendData() {
  var checkboxes = document.querySelectorAll('input[type="checkbox"]:checked');
  var values = [];

  for (var i = 0; i < checkboxes.length; i++) {
    values.push(checkboxes[i].value);
  }

  // 使用Ajax将数据发送到PHP
  var xhr = new XMLHttpRequest();
  xhr.open("POST", "your_php_file.php", true);
  xhr.setRequestHeader("Content-Type", "application/x-www-form-urlencoded");
  xhr.onreadystatechange = function() {
    if (xhr.readyState === 4 && xhr.status === 200) {
      // 处理响应
    }
  };
  xhr.send("data=" + JSON.stringify(values));
}