/**
* @param $log
* @return js payment object
*/
public function payWeixin($log)
{
self::loadSettings();
$setting = C('PAY');
$pay = $setting[self::OPT_WEIXIN];
$a = new Account();
$account = $a->getAccount($pay['account']);
$pay['appid'] = $account['appid'];
$pay['secret'] = $account['secret'];
$wOpt = array();
$m = new Member();
$fan = $m->fetchFan($log['uid'], $pay['account']);
$package = array();
$package['appid'] = $pay['appid'];
$package['mch_id'] = $pay['mchid'];
$package['nonce_str'] = util_random(8);
$package['body'] = $log['title'];
$package['attach'] = $log['plid'];
$package['out_trade_no'] = md5($log['plid']);
$package['total_fee'] = $log['fee'] * 100;
$package['spbill_create_ip'] = get_client_ip();
$package['time_start'] = date('YmdHis', TIMESTAMP);
$package['time_expire'] = date('YmdHis', TIMESTAMP + 600);
$package['notify_url'] = __HOST__ . U('wander/payment/weixin/t/notify');
$package['trade_type'] = 'JSAPI';
$package['openid'] = $fan['openid'];
ksort($package, SORT_STRING);
$string1 = '';
foreach ($package as $key => $v) {
$string1 .= "{$key}={$v}&";
}
$string1 .= "key={$pay['key']}";
$package['sign'] = strtoupper(md5($string1));
$dat = util_2xml($package);
$response = Net::httpPost('https://api.mch.weixin.qq.com/pay/unifiedorder', $dat);
if (is_error($response)) {
return $response;
}
$xml = '<?xml version="1.0" encoding="utf-8"?>' . $response;
$dom = new \DOMDocument();
if (!$dom->loadXML($xml)) {
return error(-1, 'error response');
}
$xpath = new \DOMXPath($dom);
if ($xpath->evaluate("string(//xml/return_code)") == 'FAIL') {
return error(-2, $xpath->evaluate("string(//xml/return_msg)"));
}
if ($xpath->evaluate("string(//xml/result_code)") == 'FAIL') {
return error(-3, $xpath->evaluate("string(//xml/err_code_des)"));
}
$prepayid = $xpath->evaluate("string(//xml/prepay_id)");
$wOpt['appId'] = $pay['appid'];
$wOpt['timeStamp'] = TIMESTAMP;
$wOpt['nonceStr'] = util_random(8);
$wOpt['package'] = 'prepay_id=' . $prepayid;
$wOpt['signType'] = 'MD5';
ksort($wOpt, SORT_STRING);
$string = '';
foreach ($wOpt as $key => $v) {
$string .= "{$key}={$v}&";
}
$string .= "key={$pay['key']}";
$wOpt['paySign'] = strtoupper(md5($string));
return $wOpt;
}
/**
* 将一个数组转换为 XML 结构的字符串
*
* @param array $arr 要转换的数组
* @param int $isRoot 节点层级, 1 为 Root.
* @return string XML 结构的字符串
*/
function util_2xml($arr, $isRoot = 1)
{
$s = $isRoot == 1 ? "<xml>" : '';
foreach ($arr as $tagname => $value) {
if (is_numeric($tagname)) {
$tagname = $value['TagName'];
unset($value['TagName']);
}
if (!is_array($value)) {
$s .= "<{$tagname}>" . (!is_numeric($value) ? '<![CDATA[' : '') . $value . (!is_numeric($value) ? ']]>' : '') . "</{$tagname}>";
} else {
$s .= "<{$tagname}>" . util_2xml($value, $isRoot + 1) . "</{$tagname}>";
}
}
$s = preg_replace("/([-\v-\f- ])+/", ' ', $s);
return $isRoot == 1 ? $s . "</xml>" : $s;
}
