帮我用php+mysql编写一个用车申请网页包括用车申请、用车批准功能以及后台人员管理维护

以下是一个简单的用车申请网页的示例，包括用车申请、用车批准功能和后台人员管理维护：

前台页面：

1. 用车申请表单

<form action="process_application.php" method="post">
  <label for="name">姓名：</label>
  <input type="text" id="name" name="name" required><br>

  <label for="department">部门：</label>
  <input type="text" id="department" name="department" required><br>

  <label for="reason">用车事由：</label>
  <textarea id="reason" name="reason" required></textarea><br>

  <label for="date">用车日期：</label>
  <input type="date" id="date" name="date" required><br>

  <label for="time">用车时间：</label>
  <input type="time" id="time" name="time" required><br>

  <label for="destination">目的地：</label>
  <input type="text" id="destination" name="destination" required><br>

  <button type="submit">提交申请</button>
</form>

2. 用车申请列表

<table>
  <tr>
    <th>姓名</th>
    <th>部门</th>
    <th>用车事由</th>
    <th>用车日期</th>
    <th>用车时间</th>
    <th>目的地</th>
    <th>状态</th>
  </tr>
  <?php
    // 获取用车申请列表
    $sql = "SELECT * FROM applications";
    $result = mysqli_query($conn, $sql);

    // 遍历申请列表
    while ($row = mysqli_fetch_assoc($result)) {
      echo '<tr>';
      echo '<td>' . $row['name'] . '</td>';
      echo '<td>' . $row['department'] . '</td>';
      echo '<td>' . $row['reason'] . '</td>';
      echo '<td>' . $row['date'] . '</td>';
      echo '<td>' . $row['time'] . '</td>';
      echo '<td>' . $row['destination'] . '</td>';
      echo '<td>' . $row['status'] . '</td>';
      echo '</tr>';
    }
  ?>
</table>

3. 用车批准表单

<form action="process_approval.php" method="post">
  <input type="hidden" name="id" value="<?php echo $id; ?>">

  <label for="driver">司机姓名：</label>
  <input type="text" id="driver" name="driver" required><br>

  <label for="car">车牌号码：</label>
  <input type="text" id="car" name="car" required><br>

  <button type="submit">批准</button>
</form>

后台页面：

1. 人员管理列表

<table>
  <tr>
    <th>姓名</th>
    <th>部门</th>
    <th>职位</th>
    <th>操作</th>
  </tr>
  <?php
    // 获取人员列表
    $sql = "SELECT * FROM users";
    $result = mysqli_query($conn, $sql);

    // 遍历人员列表
    while ($row = mysqli_fetch_assoc($result)) {
      echo '<tr>';
      echo '<td>' . $row['name'] . '</td>';
      echo '<td>' . $row['department'] . '</td>';
      echo '<td>' . $row['position'] . '</td>';
      echo '<td><a href="edit_user.php?id=' . $row['id'] . '">编辑</a> | <a href="delete_user.php?id=' . $row['id'] . '">删除</a></td>';
      echo '</tr>';
    }
  ?>
</table>

2. 添加人员表单

<form action="process_add_user.php" method="post">
  <label for="name">姓名：</label>
  <input type="text" id="name" name="name" required><br>

  <label for="department">部门：</label>
  <input type="text" id="department" name="department" required><br>

  <label for="position">职位：</label>
  <input type="text" id="position" name="position" required><br>

  <button type="submit">添加人员</button>
</form>

3. 编辑人员表单

<form action="process_edit_user.php" method="post">
  <input type="hidden" name="id" value="<?php echo $id; ?>">

  <label for="name">姓名：</label>
  <input type="text" id="name" name="name" value="<?php echo $name; ?>" required><br>

  <label for="department">部门：</label>
  <input type="text" id="department" name="department" value="<?php echo $department; ?>" required><br>

  <label for="position">职位：</label>
  <input type="text" id="position" name="position" value="<?php echo $position; ?>" required><br>

  <button type="submit">保存更改</button>
</form>

以上代码只是示例，实际应用中还需要进行更多的安全性检查和错误处理。