PHP和UniApp实现表单验证和提交的技巧

<?php

if ($_SERVER["REQUEST_METHOD"] == "POST") {
    $name = $_POST["name"];
    $email = $_POST["email"];

    if (empty($name)) {
        echo "姓名不能为空";
    } else if (empty($email)) {
        echo "邮箱不能为空";
    } else {
        // 进行其他操作，比如保存数据至数据库
    }
}

?>

<template>
  <view>
    <input type="text" v-model="name" placeholder="请输入姓名" />
    <input type="email" v-model="email" placeholder="请输入邮箱" />
    <button @click="submitForm">提交</button>
  </view>
</template>

<script>
export default {
  data() {
    return {
      name: "",
      email: ""
    };
  },
  methods: {
    submitForm() {
      if (!this.name) {
        uni.showToast({
          title: "姓名不能为空",
          icon: "none"
        });
      } else if (!this.email) {
        uni.showToast({
          title: "邮箱不能为空",
          icon: "none"
        });
      } else {
        // 进行其他操作，比如发送数据至服务器
      }
    }
  }
};
</script>