微信小程序手机号登录

php部分

/**
     * 手机号登录
     * @return [type] [description]
     */
    public function getPhone()
    {
	//包含iv，code，encryptedData
        $post = $this->request->param();

        $param['appid'] = 'wx5b2fc725da6511d7';    //小程序id
        $param['secret'] = '683c9840703dbd6df2056fc8ba21c7aa';    //小程序密钥
        $param['js_code'] = define_str_replace($post['code']); //这个code是用getInfo获取的code
        $param['grant_type'] = 'authorization_code';

	//从微信方请求到session_key
        $http_key = httpCurl('https://api.weixin.qq.com/sns/jscode2session', $param, 'GET');
        $session_key = json_decode($http_key,true);

	//一般如果$session_key里有session_key的键名的话，基本都是成功了
        if(!empty($session_key['session_key'])) {
            $appid = $param['appid'];
            $encryptedData = urldecode($post['encryptedData']);
            $iv = define_str_replace($post['iv']);
	//进行解密，解密失败的话$errCode里是int类型的值，例如-41003，成功的话是一维数组，里面包含解密结果
            $errCode = decryptData($appid, $session_key['session_key'], $encryptedData, $iv);
        }
        return json_success(1,'success',$session_key);
    }

uniapp部分

<template>
	<view class="warp" style="width: 100%;height: 100vh;">
		//&#19968;&#23450;&#35201;&#20351;&#29992;@getphonenumber&#33719;&#21462;
		<button open-type="getPhoneNumber" type="primary" style="position:absolute;top:35%;left:5%;width:90%;">
			&#19968;&#38190;&#25480;&#26435;&#30331;&#24405;
		</button>
	</view>
</template>

<script>
	export default {
		data() {
			return {
				code:'',
				session_key:'',
				phone:'',
				encryptedData:'',
			}
		},
		onLoad() {
			this.getInfo();
		},
		methods: {
			//&#27492;&#20989;&#25968;&#33719;&#21462;&#21040;code
			getInfo(){
				uni.login({
					provider:'weixin',
					success:(res)=>{
						this.code = res.code;
					}
				})
			},
			getphonenumber:function(e){
				console.log(e);
				&#22914;&#26524;&#25104;&#21151;&#30340;&#35805;&#65292;errMsg&#20250;&#26159;ok&#65292;&#28982;&#21518;&#20250;&#26377;&#20004;&#20010;&#21442;&#25968;&#65292;encryptedData&#21644;iv&#65292;&#36825;&#20004;&#20010;&#26159;&#35831;&#27714;&#25163;&#26426;&#21495;&#24517;&#39035;&#30340;
				if(e.detail.errMsg == 'getPhoneNumber:ok'){
					//&#37325;&#35201;&#65292;&#37325;&#35201;&#65292;&#37325;&#35201;
					//&#19968;&#23450;&#35201;&#29992;encodeURIComponent&#36827;&#34892;&#32534;&#30721;&#19968;&#19979;,&#19981;&#28982;&#20250;&#25253;-41003&#38169;&#35823;
					this.encryptedData = encodeURIComponent(e.detail.encryptedData);
					uni.request({
						url:'http://beiyong1.qinfenniao.com/api/Index/getphone',
						method:'POST',
						data:{
							code:this.code,
							encryptedData:this.encryptedData,
							iv:e.detail.iv,
						},
						success:(res)=>{
							console.log('&#33719;&#21462;&#32467;&#26524;',res);
						}
					})
				}else{
					uni.showToast({
						title:'&#33719;&#21462;&#22833;&#36133;',
						icon:'none',
						duration:1500,
					})
				}
			}
		}
	}
</script>

<style>
	.warp {
		position: relative;
		height: 100vh;
	}

	.btn {
		width: 400rpx;
		height: 100rpx;
		text-align: center;
		line-height: 100rpx;
		border-radius: 12rpx;
		background-color: #4CD964;
		color: #fff;
		font-size: 39rpx;
		font-weight: bold;
		margin: auto;
		position: absolute;
		top: 0%;
		bottom: 0px;
		left: 0px;
		right: 0px;
	}

	.wenzi {
		text-align: center;
		position: relative;
		top: 450rpx;
		color: grey;
	}
</style>