Codeigniter使用Easywechat组件
本帖最后由 wx_b6NF656F 于 2016-10-14 12:02 编辑原创内容，转载请注明出处：https://phpsoho.com/publish/article/34 在【Codeigniter添加Composer支持】中，讲过了如何在Codeigniter添加Composer支持，本篇文章讲一下如何使用第三方package包。
通过Composer安装Easywechat
进入项目根目录，执行：litou$composer require overtrue/wechat
Using version ^3.1 for overtrue/wechat
./composer.json has been updated
Loading composer repositories with package information
Updating dependencies (including require-dev)
- Installing symfony/polyfill-mbstring (v1.2.0)
Loading from cache
- Installing symfony/http-foundation (v3.1.5)
Loading from cache
- Installing psr/http-message (1.0.1)
Loading from cache
- Installing symfony/psr-http-message-bridge (v0.4)
Downloading: 100%
- Installing guzzlehttp/promises (1.2.0)
Loading from cache
- Installing guzzlehttp/psr7 (1.3.1)
Loading from cache
- Installing guzzlehttp/guzzle (6.2.2)
Loading from cache
- Installing doctrine/cache (v1.6.0)
Loading from cache
- Installing overtrue/socialite (1.0.18)
Downloading: 100%
- Installing psr/log (1.0.2)
Loading from cache
- Installing monolog/monolog (1.21.0)
Loading from cache
- Installing pimple/pimple (v3.0.2)
Loading from cache
- Installing overtrue/wechat (3.1.5)
Downloading: 100%
symfony/psr-http-message-bridge suggests installing zendframework/zend-diactoros (To use the Zend Diactoros factory)
monolog/monolog suggests installing aws/aws-sdk-php (Allow sending log messages to AWS services like DynamoDB)
monolog/monolog suggests installing doctrine/couchdb (Allow sending log messages to a CouchDB server)
monolog/monolog suggests installing ext-amqp (Allow sending log messages to an AMQP server (1.0+ required))
monolog/monolog suggests installing ext-mongo (Allow sending log messages to a MongoDB server)
monolog/monolog suggests installing graylog2/gelf-php (Allow sending log messages to a GrayLog2 server)
monolog/monolog suggests installing mongodb/mongodb (Allow sending log messages to a MongoDB server via PHP Driver)
monolog/monolog suggests installing php-amqplib/php-amqplib (Allow sending log messages to an AMQP server using php-amqplib)
monolog/monolog suggests installing php-console/php-console (Allow sending log messages to Google Chrome)
monolog/monolog suggests installing rollbar/rollbar (Allow sending log messages to Rollbar)
monolog/monolog suggests installing ruflin/elastica (Allow sending log messages to an Elastic Search server)
monolog/monolog suggests installing sentry/sentry (Allow sending log messages to a Sentry server)
Writing lock file
Generating autoload files
执行完成，composer.json在require中自动添加了包依赖：
"overtrue/wechat": "^3.1"
在vendor目录中，我们发现多了几个目录：
doctrine、guzzlehttp、monolog、overtrue、pimple、psr、symfony
以上目录中，除overtrue为我们主动安装的第三方包之外，其它的均是overtrue方依赖的第三方包，Composer是为解决这些依赖而生的，细节相关，请查阅官方文档资料。
配置Easywechat：
在application/config目录中新增 easywechat.php文件，使配置如下：
<?php$config["wechat"] = [ 'debug' => true, /** * 账号基本信息，请从微信公众平台/开放平台获取 */ 'app_id' => 'app-id', 'secret' => 'app-secret', 'token' => 'token', 'aes_key' => 'EncodingAESKey', /** * OAuth 配置 * * scopes：公众平台（snsapi_userinfo / snsapi_base），开放平台：snsapi_login * callback：OAuth授权完成后的回调页地址 */ 'oauth' => [ 'scopes' => [ 'snsapi_userinfo' ], 'callback' => env('WECHAT_OAUTH_CALLBACK','oauth_callback'), ], /** * Guzzle 全局设置 * * 更多请参考： http://docs.guzzlephp.org/en/l ... .html */ 'guzzle' => [ 'timeout' => 3.0// 超时时间（秒） ] ];
注：本文只为引入使用基本功能，详细配置请参阅：【官方配置】
创建application/controllers/Weixin.php<?php
//引入easywechat包
use EasyWeChat\Foundation\Application;
class Weixin extends My_Controller
{
//声明wechat类资源句柄
protected $wechat = NULL;
public function __construct()
{
parent::__construct();
//加载easywechat配置文件
$this->load->config("easywechat");
//实例化easywechat包
$this->wechat = new Application(config_item("wechat"));
}
public function index(){
echo "发起授权请求：<a href='weixin/oauth'>./weixin/oauth</a><br>";
echo "获取用户信息：<a href='weixin/user'>./weixin/user</a><br>";
}
public function user(){
//获得用户信息
//1.用户须已经关注此公众号
//2.通过openid来进行获取
$user = $this->wechat->user->get("oRGOms1oh2TtkvHK-FoQA4tnWH_U");
var_dump($user);
}
//微信用户进行公众号授权
public function oauth(){
$response = $this->wechat->oauth->with(['state'=>$backurl])->redirect();
$response->send();
}
//回调地址，在此拿到用户的信息及access_token相关信息
public function oauth_callback(){
$response = $this->wechat->oauth->user();
var_dump($response);
}
}本文只做了简单的示例操作，具体的业务逻辑取决于各种应不同而不同。
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