话不多说，直接上代码，直接把APPID和APPSECRET改成自己的就能用了
<?phpheader('content-type:text/html;charset=utf-8');//配置APPID、APPSECRET$APPID = "APPID";$APPSECRET = "APPSECRET";//获取access_token$access_token = "https://api.weixin.qq.com/cgi-bin/token?grant_type=client_credential&appid=$APPID&secret=$APPSECRET";//缓存access_token session_start(); $_SESSION['access_token'] = ""; $_SESSION['expires_in'] = 0; $ACCESS_TOKEN = ""; if(!isset($_SESSION['access_token']) || (isset($_SESSION['expires_in']) && time() > $_SESSION['expires_in'])) { $json = httpRequest( $access_token ); $json = json_decode($json,true); // var_dump($json); $_SESSION['access_token'] = $json['access_token']; $_SESSION['expires_in'] = time()+7200; $ACCESS_TOKEN = $json["access_token"]; }else{ $ACCESS_TOKEN = $_SESSION["access_token"]; }//构建请求二维码参数//path是扫描二维码跳转的小程序路径，可以带参数?id=xxx//width是二维码宽度$qcode ="https://api.weixin.qq.com/cgi-bin/wxaapp/createwxaqrcode?access_token=$ACCESS_TOKEN";$param = json_encode(array("path"=>"pages/index/index?id=123","width"=> 150));//POST参数$result = httpRequest( $qcode, $param,"POST");//生成二维码
file_put_contents("./qrcode.png", $result);//把请求发送到微信服务器换取二维码 function httpRequest($url, $data='', $method='GET'){ $curl = curl_init(); curl_setopt($curl, CURLOPT_URL, $url); curl_setopt($curl, CURLOPT_SSL_VERIFYPEER, 0); curl_setopt($curl, CURLOPT_SSL_VERIFYHOST, 0); curl_setopt($curl, CURLOPT_USERAGENT, $_SERVER['HTTP_USER_AGENT']); curl_setopt($curl, CURLOPT_FOLLOWLOCATION, 1); curl_setopt($curl, CURLOPT_AUTOREFERER, 1); if($method=='POST') { curl_setopt($curl, CURLOPT_POST, 1); if ($data != '') { curl_setopt($curl, CURLOPT_POSTFIELDS, $data); } } curl_setopt($curl, CURLOPT_TIMEOUT, 30); curl_setopt($curl, CURLOPT_HEADER, 0); curl_setopt($curl, CURLOPT_RETURNTRANSFER, 1); $result = curl_exec($curl); curl_close($curl); return $result; }?>
