如何使用PHP和Vue开发支付后会员积分的赠送功能

<?php
// 获取用户ID和充值金额等参数
$user_id = $_POST['user_id'];
$recharge_amount = $_POST['recharge_amount'];

// 根据充值金额计算充值积分（此处可以根据需求进行调整）
$recharge_points = $recharge_amount * 10;

// 插入充值记录
$sql = "INSERT INTO recharge_records (user_id, recharge_amount, recharge_points, recharge_time)
        VALUES ('$user_id', '$recharge_amount', '$recharge_points', NOW())";
mysqli_query($conn, $sql);

// 更新用户积分
$sql = "UPDATE users SET points = points + $recharge_points WHERE id = '$user_id'";
mysqli_query($conn, $sql);

// 返回成功的响应
$response = [
    'status' => 'success',
    'message' => '充值成功',
    'points' => $recharge_points
];
echo json_encode($response);
?>

<template>
  <div>
    <h2>当前积分：{{ points }}</h2>
    <input type="text" v-model="rechargeAmount" placeholder="请输入充值金额">
    <button @click="recharge">充值</button>
  </div>
</template>

<script>
export default {
  data() {
    return {
      points: 0,
      rechargeAmount: ''
    };
  },
  mounted() {
    // 页面加载时，获取用户的积分信息
    this.fetchPoints();
  },
  methods: {
    fetchPoints() {
      // 发送HTTP请求获取用户的积分信息
      // 示例代码，实际情况按照实际需求进行调整
      this.points = 100;
    },
    recharge() {
      // 发送HTTP请求进行充值操作
      // 示例代码，实际情况按照实际需求进行调整
      const data = {
        user_id: 1,
        recharge_amount: this.rechargeAmount
      };
      fetch('recharge.php', {
        method: 'POST',
        body: JSON.stringify(data)
      })
        .then(response => response.json())
        .then(result => {
          if (result.status === 'success') {
            alert(result.message);
            this.fetchPoints(); // 更新用户的积分信息
          }
        });
    }
  }
};
</script>