[PHP知识库]小程序php：省市区三级联动

index.js

import { getCity } from '../../api/api.js';
  data: {
      region: ['省', '市', '区'],
      valueRegion: [0, 0, 0],
      id:0,//地址id
      cityId:0,
      district:[],
      multiArray:[],
      multiIndex: [0, 0, 0]
  }
  /**
   * 生命周期函数--监听页面加载
   */
  onLoad: function (options) {
    this.getCityList();
  },
  getCityList:function(){
    let that = this;
    getCity().then(res=>{
      that.setData({ district:res.data});
      that.initialize();
    })
  },
  initialize:function(){
    let that = this, province = [], city = [], area = [];
    if (that.data.district.length) {
      let cityChildren = that.data.district[0].c || [];
  

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