PHP WeChat QR code generation class, php generation

PHP development QR code generation class, php generation

<? Php/*** Created by PhpStorm. * User: bin * Date: 15-1-16 * Time: */namespace Home \ Common; // processing class set_time_limit (30 ); class Weixin {// constructor static $ qrcode_url = "https://api.weixin.qq.com/cgi-bin/qrcode/create? "; Static $ token_url =" https://api.weixin.qq.com/cgi-bin/token? Grant_type = client_credential & "; static $ qrcode_get_url =" https://mp.weixin.qq.com/cgi-bin/showqrcode? "; // Generate the QR code public function getEwm ($ wechatid, $ fqid, $ type = 1) {$ wechat = M ('Member _ public ') -> where (array ('id' => $ wechatid)-> find (); $ appid = $ wechat ['appid ']; $ secret = $ wechat ['secret']; $ ACCESS_TOKEN = $ this-> getToken ($ appid, $ secret); $ url = $ this-> getQrcodeurl ($ ACCESS_TOKEN, $ fqid, 1); return DownLoadQr ($ url, time ();} protected function getQrcodeurl ($ ACCESS_TOKEN, $ fqid, $ type = 1) {$ url = self :: $ q Rcode_url. 'Access _ token = '. $ ACCESS_TOKEN; if ($ type = 1) {// generate a permanent QR code $ qrcode = '{"action_name": "QR_LIMIT_SCENE", "action_info": {"scene ": {"scene_id ":'. $ fqid. '}}}';} else {// generate a temporary QR code $ qrcode =' {"expire_seconds": 1800, "action_name": "QR_SCENE", "action_info ": {"scene": {"scene_id ":'. $ fqid. '}}}';} $ result = $ this-> http_post_data ($ url, $ qrcode); $ oo = json_decode ($ result [1]); if (! $ Oo-> ticket) {$ this-> ErrorLogger ('getqrcodeurl falied. error Info: getQrcodeurl get failed '); exit () ;}$ url = self: $ qrcode_get_url. 'ticket = '. $ oo-> ticket. ''; return $ url;} protected function getToken ($ appid, $ secret) {$ ACCESS_TOKEN = file_get_contents (self: $ token_url. "appid = $ appid & secret = $ secret"); $ ACCESS_TOKEN = json_decode ($ ACCESS_TOKEN); $ ACCESS_TOKEN = $ ACCESS_TOKEN-> access_token; return $ ACCESS_TOKEN ;} protected function http_post_data ($ url, $ data_string) {$ ch = curl_init (); curl_setopt ($ ch, CURLOPT_POST, 1); curl_setopt ($ ch, CURLOPT_URL, $ url ); curl_setopt ($ ch, CURLOPT_POSTFIELDS, $ data_string); curl_setopt ($ ch, CURLOPT_HTTPHEADER, array ('content-Type: application/json; charset = UTF-8 ', 'content-Length: '. strlen ($ data_string); ob_start (); curl_exec ($ ch); if (curl_errno ($ ch) {$ this-> ErrorLogger ('curl falied. error Info :'. curl_error ($ ch);} $ return_content = ob_get_contents (); ob_end_clean (); $ return_code = curl_getinfo ($ ch, CURLINFO_HTTP_CODE); return array ($ return_code, $ return_content);} // download the QR code to the server protected function DownLoadQr ($ url, $ filestring) {if ($ url = "") {return false ;} $ filename = paifilestring.'.jpg '; ob_start (); readfile ($ url); $ img = ob_get_contents (); ob_end_clean (); $ size = strlen ($ img ); $ fp2 = fopen ('. /Uploads/qrcode /'. $ filename, "a"); if (fwrite ($ fp2, $ img) === false) {$ this-> ErrorLogger ('dolwload image falied. error Info: unable to write image '); exit () ;}fclose ($ fp2); return '. /Uploads/qrcode /'. $ filename;} private function ErrorLogger ($ errMsg) {$ logger = fopen ('. /ErrorLog.txt ', 'a +'); fwrite ($ logger, date ('Y-m-d H: I: s '). "Error Info :". $ errMsg. "\ r \ n ");}}