如何使用SQL查询生成的按钮获取id / name onclick？

Question

I am creating a table from a MySQL database. Currently, I can manually enter the Course ID, then click 'select' to display a roster based on the Course ID entered.

However, I would like to streamline this with buttons on the right side of the table after each row. What is the best way to do this? I can provide a screenshot, but I still need more reputation.

So the code for generating this table is as follows.

<?php
// Connection information to database has been removed. 

// $Row[1] - first name of faculty
// $Row[2] - last name of faculty
// $fieldRow[0] - course ID
// $fieldRow[1] - course name
// $fieldRow[2] - course year
// $fieldRow[3] - number of units

echo "<table>
<caption>....for " . $Row[1] . " " . $Row[2] . "</caption>
<tr>
  <th>Course ID</th>
  <th>Course Name</th>
  <th>Course Year</th>
  <th>Units</th>
</tr>";
while ($fieldRow = mysqli_fetch_row($result2))
{
    echo "<tr><td>" . $fieldRow[0] . "</td>
    <td>" . $fieldRow[1] . "</td>
    <td>" . $fieldRow[2] . "</td>
    <td>" . $fieldRow[3] . "</td>
    <td><button name='" . $fieldRow[0] . "'>Select</button></td>
    </tr>";
}
echo "</table>";
?>

<form method="get" action="class.php">
  <p>Enter Course ID
    <input autofocus="autofocus" tabindex="1" type="text" maxlength="5" name="classSelect" title="Enter Class Number" />
  </p>
  <p>
    <button tabindex="2" type="submit">Select</button>
  </p>
</form>

Thanks for looking at this!

Answer 1

You could have something like

if(isset($_GET['id'])
{
  $course_id = intval($_GET['id']);
  // Do your query against the course id.
}

 while ($fieldRow = mysqli_fetch_row($result2))
    {
      echo "<tr><td>" . $fieldRow[0] . "</td>
      <td>" . $fieldRow[1] . "</td>
      <td>" . $fieldRow[2] . "</td>
      <td>" . $fieldRow[3] . "</td>
      <td><a href='" . ?id=$fieldRow[0] . "'>Select</a></td>
      </tr>";
    }
    echo "</table>";
    ?>