oauth/config/wechat.php

<?php
# wechat基本配置

# 第一步 请求
$config['auth'] = array
(
	'url' => 'https://open.weixin.qq.com/connect/oauth2/authorize',
	'param' => array
	(
		'appid' => '',
		'redirect_uri' => '',
		# 重命名，如果key不是response_type的话
		//'response_type' => array('response_type', 'code'),
		'response_type' => 'code',
		'scope' => 'snsapi_userinfo',
		'state' => '',
		//'contact' => '#wechat_redirect',
	)
);

# 第二步 获取token
$config['token'] = array
(
	'url' => 'https://api.weixin.qq.com/sns/oauth2/access_token',
	'param' => array
	(
		'appid' => '',
		'secret' => '',
		'code' => '',
		'grant_type' => 'authorization_code',
	),
	'response' => array
	(
		'access_token' => '',
		'expires_in' => '',
		'refresh_token' => '',
		'openid' => '',
		'unionid' => '',
		'scope' => '',
		'errcode' => '',
		'errmsg' => '',
	)
);

# 第三步 获取用户信息
$config['user'] = array
(
	'url' => 'https://api.weixin.qq.com/sns/oauth2/access_token',
	'param' => array
	(
		'appid' => 'appid',
		'secret' => 'secret',
		'code' => 'code',
		'grant_type' => 'authorization_code',
	)
);

return $config;