mayi_cms/include/payment/wxpay/function.php

<?php

function getOrderNo()
{
	global $timestamp;
	return rand(11, 99) . $timestamp . rand(11, 99);
}

function WechatReturnSuccess()
{
	echo '<xml><return_code><![CDATA[SUCCESS]]></return_code><return_msg><![CDATA[OK]]></return_msg></xml>';
	exit();
}

function get_url_contents($url)
{
	$ch = curl_init();
	curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
	curl_setopt($ch, CURLOPT_URL, $url);
	curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false);
	curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, false);
	$result = curl_exec($ch);
	curl_close($ch);
	return $result;
}

function getAccessTokenByCode($code = '', $appid = '', $appsecret = '')
{
	$url = 'https://api.weixin.qq.com/sns/oauth2/access_token?appid=' . $appid . '&secret=' . $appsecret . '&code=' . $code . '&grant_type=authorization_code';
	return json_decode(get_url_contents($url), true);
}

function getBaseAccessToken($appid = '', $appsecret = '')
{
	$url = 'https://api.weixin.qq.com/cgi-bin/token?grant_type=client_credential&appid=' . $appid . '&secret=' . $appsecret;
	$data = json_decode(get_url_contents($url), true);
	if (isset($data['access_token']) && isset($data['expires_in'])) {
		return $data['access_token'];
	}
	else {
		return false;
	}
}


?>