Wie kann man laut Video das Problem von 40029 lösen? Welcher Code wurde zweimal verwendet?

Question

public function GetOpenid()

{

//通过code获得openid

if (!isset($_GET['code'])){

//触发微信返回code码

$baseUrl = urlencode( 'http://'.$_SERVER['HTTP_HOST'].$_SERVER['REQUEST_URI'].$_SERVER['QUERY_STRING']);

$url = $this->_CreateOauthUrlForCode($baseUrl);

Header("Location: $url");

exit();

} else {

//获取code码，以获取openid

    $code = $_GET['code'];

$ openid = $this->getOpenidFromMp($code);

return $openid;

}

}

 */

private Funktion __CreateOauthUrlForOpenid($code)

{

$config = new WxPayConfig() ;

$urlObj["appid"] = $config->GetAppId();

$urlObj["secret"] = $config->GetAppSecret();

$urlObj["js_code"] = $ code;

$urlObj["grant_type"] = "authorization_code";

$bizString = $this->ToUrlParams($urlObj);

return "https://api.weixin.qq.com/sns/ jscode2session?? {

$url = $this->__CreateOauthUrlForOpenid($code);

//初始化curl

$ch = curl_init();

$curlVersion = curl_version();

$config = new WxPayConfig();

$ua = "WXPaySDK/3.0.9 ("".PHP_OS.") PHP/".PHP_VERSION." CURL/".$curlVersion['version']." "

.$config- >GetMerchantId();

//设置超时

curl_setopt($ch, CURLOPT_TIMEOUT, $this->curl_timeout);

curl_setopt($ch, CURLOPT_URL, $url);

. curl _setopt($ ch, CURLOPT_SSL_VERIFYPEER,FALSE);

curl_setopt($ch, CURLOPT_SSL_VERIFYHOST,FALSE);

curl_setopt($ch, CURLOPT_USERAGENT, $ua);

curl_setopt($ch, CURLOPT_HEADER, FALSE);

curl_setopt($ch , CURLOPT_RETURNTRANSFER, TRUE);

$proxyHost = "0.0.0.0";

$proxyPort = 0;

$config->GetProxy($proxyHost, $proxyPort);

if($proxyHost ! = "0.0.0.0" && $proxyPort != 0){

curl_setopt($ch,CURLOPT_PROXY, $proxyHost);

curl_setopt($ch,CURLOPT_PROXYPORT, $proxyPort);

}

//运行curl，结果以jason形式返回

$res = curl_exec($ch);

curl_close($ch);

//取出openid

$data = json_decode($res,true);

$this-> data = $data;

$openid = $data['openid'];

return $openid;

}