Fatal error: Uncaught ArgumentCountError: Too few arguments to function Wechat::getQRCode(), 0 passed in C:\website\wx_inc\test\getQRCode_test.php on line 19 and at least 1 expected in C:\website\wx_inc\wechat.class.php:2213 Stack trace: #0 C:\website\wx_inc\test\getQRCode_test.php(19): Wechat->getQRCode() #1 {main} thrown in C:\website\wx_inc\wechat.class.php on line 2213